ISOXAZOLE CARBOXAMIDE COMPOUNDS

Description

BACKGROUND OF THE INVENTION

Field of the Invention

The present disclosure provides substituted isoxazole carboxamides as SMYD protein inhibitors, such as SMYD3 and SMYD2 inhibitors, and therapeutic methods of treating conditions and diseases wherein inhibition of SMYD proteins such as SMYD3 and SMYD2 provides a benefit.

Background

Epigenetic regulation of gene expression is an important biological determinant of protein production and cellular differentiation and plays a significant pathogenic role in a number of human diseases. Epigenetic regulation involves heritable modification of genetic material without changing its nucleotide sequence. Typically, epigenetic regulation is mediated by selective and reversible modification (e.g., methylation) of DNA and proteins (e.g., histones) that control the conformational transition between transcriptionally active and inactive states of chromatin. These covalent modifications can be controlled by enzymes such as methyltransferases (e.g., SMYD proteins such as SMYD3 and SMYD2), many of which are associated with genetic alterations that can cause human disease, such as proliferative disorders. Thus, there is a need for the development of small molecules that are capable of inhibiting the activity of SMYD proteins such as SMYD3 and SMYD2.

BRIEF SUMMARY OF THE INVENTION

In one aspect, the present disclosure provides substituted isoxazole carboxamide compounds represented by Formulae I-XVII below, and the pharmaceutically acceptable salts and solvates thereof, collectively referred to herein as “Compounds of the Disclosure.”

In another aspect, the present disclosure provides a Compound of the Disclosure and one or more pharmaceutically acceptable carriers.

In another aspect, the present disclosure provides a method of inhibiting SMYD proteins, such as SMYD3 or SMYD2, or both, in a mammal, comprising administering to the mammal an effective amount of at least one Compound of the Disclosure.

In another aspect, the present disclosure provides methods for treating a disease, disorder, or condition, e.g., cancer, responsive to inhibition of SMYD proteins, such as SMYD3 or SMYD2, or both, comprising administering a therapeutically effective amount of a Compound of the Disclosure.

In another aspect, the present disclosure provides the use of Compounds of the Disclosure as inhibitors of SMYD3.

In another aspect, the present disclosure provides the use of Compounds of the Disclosure as inhibitors of SMYD2.

In another aspect, the present disclosure provides the use of Compounds of the Disclosure as inhibitors of SMYD proteins.

In another aspect, the present disclosure provides a pharmaceutical composition for treating a disease, disorder, or condition responsive to inhibition of SMYD proteins, such as SMYD3 or SMYD2, or both, wherein the pharmaceutical composition comprises a therapeutically effective amount of a Compound of the Disclosure in a mixture with one or more pharmaceutically acceptable carriers.

In another aspect, the present disclosure provides Compounds of the Disclosure for use in treating cancer in a mammal, e.g., breast, cervical, colon, kidney, liver, head and neck, skin, pancreatic, ovary, esophageal, lung, and prostate cancer.

In another aspect, the present disclosure provides a Compound of the Disclosure for use in the manufacture of a medicament for treating cancer in a mammal.

In another aspect, the present disclosure provides kit comprising a Compound of the Disclosure.

Additional embodiments and advantages of the disclosure will be set forth, in part, in the description that follows, and will flow from the description, or can be learned by practice of the disclosure. The embodiments and advantages of the disclosure will be realized and attained by means of the elements and combinations particularly pointed out in the appended claims.

It is to be understood that both the foregoing summary and the following detailed description are exemplary and explanatory only, and are not restrictive of the invention as claimed.

DETAILED DESCRIPTION OF TILE INVENTION

One aspect of the present disclosure is based on the use of Compounds of the Disclosure as inhibitors of SMYD proteins. In view of this property, the Compounds of the Disclosure are useful for treating diseases, disorders, or conditions, e.g., cancer, responsive to inhibition of SMYD proteins.

One aspect of the present disclosure is based on the use of Compounds of the Disclosure as inhibitors of SMYD3. In view of this property, the Compounds of the Disclosure are useful for treating diseases, disorders, or conditions. e.g., cancer, responsive to inhibition of SMYD3.

One aspect of the present disclosure is based on the use of Compounds of the Disclosure as inhibitors of SMYD2. In view of this property, the Compounds of the Disclosure are useful for treating diseases, disorders, or conditions, e.g., cancer, responsive to inhibition of SMYD2.

In one embodiment, Compounds of the Disclosure are compounds having Formula I:

and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof wherein:

R¹ is selected from the group consisting of hydrogen, C_1-6 alkyl, C_1-4 alkenyl, C_1-4 haloalkyl, C_3-6 cycloalkyl, and hydroxyalkyl;

R² is selected from the group consisting of hydrogen, halo, and carboxamido;

A is selected from the group consisting of C_1-10 alkylenyl, (cycloalkylenyl)alkyl, optionally substituted C_3-12 cycloalkylenyl, optionally substituted C_6-14 arylenyl, optionally substituted 5- to 14-membered heteroarylenyl, optionally substituted 4- to 14-membered heterocyclenyl, and —C(H)R³R⁴;

with the provisos:

a) when R¹ is ethyl, n-propyl, isopropyl, isobutyl, or cyclopropyl; and R² is hydrogen, then A is not optionally substituted, optionally bridged piperidinenyl;

b) when R¹ is ethyl or cyclopropyl; R² is hydrogen; and X is —N(R⁷)S(—O)₂—, —N(R⁷)C(═O)—, or —N(R⁷)C(═O)C(R⁸)(H)—, then A is not optionally substituted 1,4-cyclohexylenyl;

c) when R¹ is ethyl or cyclopropyl; R² is hydrogen; X is absent; and Z is amino, alkylamino, dialkylamino, or heterocycloamino, then A is not optionally substituted 1,4-cyclohexylenyl; and

d) when R¹ is hydrogen. C_1-6 alkyl, or Cm cycloalkyl; and R² is hydrogen, then A is not optionally substituted pyrrolidinenyl;

R³ is selected from the group consisting of hydrogen, C_1-6 alkyl. (hydroxy)(aryl)alkyl, (amino)alkyl. (alkylamino)alkyl, (dialkylamino)alkyl, hydroxyalkyl, alkoxyalkyl, aryloxyalkyl, optionally substituted C_3-12 cycloalkyl, optionally substituted 4- to 14-membered heterocyclo, optionally substituted C_6-14 aryl, aralkyl, alkoxycarbonyl, and —C(═O)N(R⁵)(R⁶);

R⁴ is selected from the group consisting of C_1-6 alkyl, hydroxyalkyl, optionally substituted C_3-12 cycloalkyl, optionally substituted C_6-14 aryl, optionally substituted 5- to 14-membered heteroaryl, optionally substituted 4- to 14-membered heterocyclo, and (heteroaryl)alkyl;

R⁵ is selected from the from the group consisting of hydrogen and C_1-4 alkyl;

R⁶ is selected from the group consisting of hydrogen, optionally substituted C_1-6 alkyl, fluoroalkyl, hydroxyalkyl, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, (cycloalkylamino)alkyl, (heterocyclo)alkyl, (cycloalkyl)alkyl, (amino)(carboxamido)alkyl, (amino)(hydroxy)alkyl, (amino)(aryl)alkyl, (amino)(heteroaryl)alkyl, (hydroxy)(aryl)alkyl, (aralkylamino)alkyl, (hydroxyalkylamino)alkyl, alkoxyalkyl, optionally substituted C_6-14 aryl, optionally substituted 4- to 14-membered heterocyclo, optionally substituted 5- to 14-membered heteroaryl optionally substituted C_3-12 cycloalkyl, aralkyl, and (heteroaryl)alkyl;

X is selected from the group consisting of —S(═O)₂—, —S(═O)₂N(R⁷)—, —N(R⁷)S(═O)₂—, —S(═O)₂C(R⁸)(H)—, —C(═O)—, —C(═O)N(R⁷)—, —N(R⁷)C(═O)—, —C(═O)O—, —OC(═O)—, —C(═O)C(R⁸)(H)N(R⁷)—, —N(R⁷)C(═O)C(R⁸)(H)—, —C(R⁸)(H)C(═O)N(R⁷)—, —C(R⁸)(H)N(R⁷)C(═O)—, and —C(═O)C(R⁸)(H)—; or X is absent, i.e., Z forms a bond with A;

Z is selected from the group consisting of hydrogen, optionally substituted C_1-6 alkyl, fluoroalkyl, hydroxyalkyl, amino, alkylamino, dialkylamino, heterocycloamino, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, (cycloalkylamino)alkyl, (heterocyclo)alkyl, (cycloalkyl)alkyl, (amino)(hydroxy)alkyl, (amino)(aryl)alkyl, (amino)(heteroaryl)alkyl (hydroxy)(aryl)alkyl, (aralkylamino)alkyl, (hydroxyalkylamino)alkyl, alkoxyalkyl, optionally substituted C_6-14 aryl, optionally substituted 4- to 14-membered heterocyclo, optionally substituted 5- to 14-membered heteroaryl optionally substituted C_3-12 cycloalkyl, aralkyl, and (heteroaryl)alkyl;

wherein —X—Z is attached to any available carbon or nitrogen atom of A, R³, R⁴, or R⁶; e.g., when R⁴ is C_1-6 alkyl. e.g., ethyl, a hydrogen atom of that ethyl group is replaced with —X—Z to give —CH₂CH₂—X—Z or

or

when R⁴ is optionally substituted C_3-12 cycloalkyl, e.g., cyclohexyl, a hydrogen atom of the cyclohexyl group is replaced with —X—Z to give:

or

when R⁴ is optionally substituted 4- to 14-membered heterocyclo, e.g., piperidinyl, the hydrogen atom attached to the piperidinyl nitrogen atom is replaced with —X—Z to give:

when R⁴ is optionally substituted C_6-14 aryl, e.g., phenyl, a hydrogen atom on that phenyl group is replaced with —X—Z to give:

R⁷ is selected from the group consisting of hydrogen and C_1-4 alkyl; and

R⁸ is selected from the group consisting of hydrogen, C_1-4 alkyl, hydroxy, amino, alkylamino, dialkylamino, cycloalkylamino, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, and hydroxyalkyl.

In another embodiment, Compounds of the Disclosure are compounds having Formula I, and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein A is C_1-10 alkylenyl.

In another embodiment, Compounds of the Disclosure are compounds having Formula II:

and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein:

R^9a and R^9b are independently selected from the group consisting of hydrogen and C_1-4 alkyl;

R^9c and R^9d are independently selected from the group consisting of hydrogen and C_1-4alkyl; or

R^9c and R^9d taken together with the carbon atom to which they are attached form a 3- to 6-membered cycloalkyl;

R^9e is selected from the group consisting of hydrogen and C_1-4 alkyl;

m is 0 or 1:

X is selected from the group consisting of —N(R⁷)C(═O)—, —N(R⁷)C(═O)C(R⁸)(H)—, and —N(R⁷)S(═O)₂—;

R⁸ is selected from the group consisting of C_1-4 alkyl, amino, alkylamino, and dialkylamino; and

Z is selected from the group consisting of C_1-6 alkyl, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, optionally substituted 4- to 14-membered heterocyclo, and optionally substituted C_1-4, cycloalkyl, and R¹, R², and R⁷ are as defined above in connection with Formula I.

In another embodiment, Compounds of the Disclosure are compounds having Formula I, and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein A is optionally substituted C_6-14 arylenyl.

In another embodiment, Compounds of the Disclosure are compounds having Formula III:

and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein:

R^10a is selected from the group consisting of hydrogen, halo, C_1-6 alkyl, alkoxy, hydroxyalkyl, and alkoxycarbonyl;

X is selected from the group consisting of —C(═O)N(R⁷)—, —N(R⁷)C(═O)—, —C(═O)C(R⁸)(H)N(R⁷)—, —C(R⁸)(H)C(═O)N(R⁷)— and —S(═O)₂N(R⁷)—; or X is absent;

R⁸ is selected from the group consisting of C_1-4 alkyl, amino, alkylamino, and dialkylamino; and

Z is selected from the group consisting of hydrogen, amino, alkylamino, dialkylamino, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, (amino)(heteroaryl)alkyl, heteroalkyl, (amino)(hydroxy)alkyl, (heterocyclo)alkyl, optionally substituted C_3-12 cycloalkyl, and optionally substituted 4- to 14-membered heterocyclo, and R¹, R², and R⁷ are as defined above in connection with Formula I.

In another embodiment, Compounds of the Disclosure are compounds having Formula IV:

and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein:

R^10a is selected from the group consisting of hydrogen, halo. C_1-6 alkyl, alkoxy, hydroxyalkyl, and alkoxycarbonyl;

X is selected from the group consisting of —C(═O)N(R⁷)—, —N(R⁷)C(═O)—, —C(═O)C(R⁸)(H)N(R⁷)—, —C(R⁸)(H)C(═O)N(R⁷)— and —S(═O)₂N(R⁷)—; or X is absent;

R⁸ is selected from the group consisting of C_1-4 alkyl, amino, alkylamino, and dialkylamino; and

Z is selected from the group consisting of hydrogen, amino, alkylamino, dialkylamino, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, (amino)(heteroaryl)alkyl, heteroalkyl, (amino)hydroxy)alkyl, (heterocyclo)alkyl, optionally substituted C_3-12 cycloalkyl, and optionally substituted 4- to 14-membered heterocyclo, and R¹, R², and R⁷ are as defined above in connection with Formula I.

In another embodiment, Compounds of the Disclosure are compounds having Formula I, and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein A is optionally substituted C_3-12 cycloalkylenyl.

In another embodiment, Compounds of the Disclosure are compounds having Formula V:

and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein:

R^10a and R^10b are independently selected from the group consisting of hydrogen and C_1-4 alkyl;

X is selected from the group consisting of —S(═O)₂—, —S(═O)₂N(R⁷)—, —N(R⁷)C(═O)—, —C(═O)N(R⁷)—, —N(R⁷)S(═O)—, and —OC(═O)—; or X is absent;

Z is selected from the group consisting of amino, alkylamino, dialkylamino, heterocycloamino. (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, and (hydroxyalkylamino)alkyl; n is 0 or 1; and p is 0 or 1, and R¹, R², and R⁷ are as defined above in connection with Formula I.

In another embodiment. Compounds of the Disclosure are compounds having Formula I, and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein A is optionally substituted 4- to 14-membered heterocyclenyl.

In another embodiment, Compounds of the Disclosure are compounds having Formula VI:

and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein:

R^11a and R^11b are each independently selected from the group consisting of hydrogen, C_1-4 alkyl, and alkoxycarbonyl;

X is selected from the group consisting of —C(═O)—, —S(═O)₂—, and —C(═O)C(R⁸)(H)—;

Z is selected from the group consisting of (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, optionally substituted C_3-12 cycloalkyl, and aralkyl; and

r is 0 or 1, and R¹, R², and R⁸ are as defined above in connection with Formula I.

In another embodiment, Compounds of the Disclosure are compounds having Formula XVI:

and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein:

R^11c and R^11d are each independently selected from the group consisting of hydrogen and C_1-4 alkyl;

X is selected from the group consisting of —C(═O)— and —S(═O)₂; or X is absent; and

Z, R¹, and R² are as defined above in connection with Formula I.

In another embodiment, Compounds of the Disclosure are compounds having Formula XVI, and the pharmaceutically acceptable salts or solvates. e.g., hydrates, thereof, wherein R^11c and R^11d are hydrogen; X is absent; Z is selected from the group consisting of hydrogen, optionally substituted C_1-6 alkyl, fluoroalkyl, hydroxyalkyl, (amino)alkyl, (alkylamino)alkyl. (dialkylamino)alkyl. (heterocyclo)alkyl, (cycloalkyl)alkyl, (hydroxy)(aryl)alkyl, alkoxyalkyl, optionally substituted C_6-14 aryl, optionally substituted 4- to 14-membered heterocyclo, optionally substituted 5- to 14-membered heteroaryl, optionally substituted C_3-12 cycloalkyl, aralkyl, and (heteroaryl)alkyl; R² is hydrogen; and R¹ is as defined above in connection with Formula I. In another embodiment, Z is selected from the group consisting of aralkyl, and (heteroaryl)alkyl. In another embodiment. Z is (heteroaryl)alkyl that is substituted with an aralkyl, e.g.,

or (heteroaryl)alkyl, e.g.,

In another embodiment, R¹ is selected from the group consisting of C_1-4 alkyl and C_3-6 cycloalkyl.

In another embodiment, Compounds of the Disclosure are compounds having Formula XVII:

and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein:

R″ is selected from the group consisting of aralkyl and (heteroaryl)alkyl; and

R¹ is as defined above in connection with Formula I.

In another embodiment, Compounds of the Disclosure are compounds having Formula XVII, wherein R¹ is selected from the group consisting of C_1-6 alkyl and C_3-6 cycloalkyl. In another embodiment, R″ is aralkyl. In another embodiment, R″ is (heteroaryl)alkyl. In another embodiment, R″ is benzyl wherein the phenyl group is optionally substituted with one or two substituents, e.g., —CH₂(4-Cl-Ph), —CH₂(3-Cl-Ph), —CH₂(3,4-di-Cl-Ph), and —CH₂(4-CF₃-Ph).

In another embodiment. Compounds of the Disclosure are compounds having Formula I, and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein A is —C(H)R³R⁴. In another embodiment, R³ is selected from the group consisting of C_1-6 alkyl and optionally substituted C_3-12 cycloalkyl; and R⁴ is selected from the group consisting of optionally substituted C_3-12 cycloalkyl and optionally substituted C_6-14 aryl. In another embodiment, R⁴ is optionally substituted 4- to 14-membered heterocyclo. In another embodiment, R³ is C_1-4 alkyl, hydroxyalkyl, alkoxyalkyl, alkoxycarbonyl, optionally substituted C_6-14 aryl, and aralkyl. In each of these embodiments. —X—Z replaces a hydrogen atom on the R⁴ substituent. In certain instances, —X—Z can be hydrogen, when X is absent and Z is hydrogen.

In another embodiment, Compounds of the Disclosure are compounds having Formula VII, Formula VIII, or Formula IX:

and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein:

R³ is selected from the group consisting of hydrogen, C_1-4 alkyl, hydroxyalkyl, alkoxyalkyl, optionally substituted C_6-14 aryl, aryloxyalkyl, and aralkyl;

X is selected from the group consisting of —S(═O)₂—, —S(═O)₂N(R⁷)—, —S(═O)₂C(R⁸)(H)—, —C(═O)—, —C(═O)N(R⁷)—, —C(═O)O—, —OC(═O)—, and —C(═O)C(R⁸)(H)—; or X is absent;

R⁸ is selected from the group consisting of C_1-4 alkyl, amino, alkylamino, and dialkylamino; and

Z is selected from the group consisting of C_1-6 alkyl, (amino)alkyl. (alkylamino)alkyl, (dialkylamino)alkyl, (heterocyclo)alkyl, hydroxyalkyl, optionally substituted C_3-12 cycloalkyl, aralkyl, and (heteroaryl)alkyl, and R¹, R², and R⁷ are as defined above in connection with Formula I. In another embodiment, R³ is selected from the group consisting of hydrogen and methyl.

In another embodiment, Compounds of the Disclosure are compounds having Formula X, Formula XI, or Formula XII:

and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein R¹² is selected from the group consisting of hydrogen, halo, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, hydroxyalkyl, (aralkyloxy)alkyl, alkoxyalkyl, heteroalkyl, (hydroxyalkylamino)alkyl, (heterocycloamino)alkyl, and carboxamido, and R¹, R², X, and Z are as defined above in connection with Formula I. In another embodiment, X is selected from the group consisting of —C(═O)N(R⁷)— and —S(═O)₂N(R⁷)—; Z is optionally substituted C_1-6 alkyl, hydroxyalkyl, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl. (heterocyclo)alkyl, (cycloalkyl)alkyl, (amino)(hydroxy)alkyl, optionally substituted C_6-14 aryl, optionally substituted 4- to 14-membered heterocyclo, optionally substituted 5- to 14-membered heteroaryl, optionally substituted C_3-12 cycloalkyl, aralkyl, and (heteroaryl)alkyl; and R¹² is hydrogen. In another embodiment, X is absent; Z is hydrogen; and R¹² is selected from the group consisting of halo, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, hydroxyalkyl, (aralkyloxy)alkyl, alkoxyalkyl, heteroalkyl, (hydroxyalkylamino)alkyl, (hetcrocycloamino)alkyl, and carboxamido.

In another embodiment, Compounds of the Disclosure are compounds having Formula XIII, Formula XIV, or Formula XV:

and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein.

R⁶ is selected from the group consisting of optionally substituted C_1-6 alkyl, hydroxyalkyl, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, (heterocyclo)alkyl, (cycloalkyl)alkyl, (amino)(hydroxy)alkyl, optionally substituted C_6-14 aryl, optionally substituted 4- to 14-membered heterocyclo, optionally substituted 5- to 14-membered heteroaryl, optionally substituted C_3-12 cycloalkyl, aralkyl, and (heteroaryl)alkyl;

X is selected from the group consisting of —C(═O)N(R⁷)—, —C(═O)C(R⁸)(H)—, and —S(═O)₂N(R⁷)—; or X is absent;

R⁸ is selected from the group consisting of C_1-4 alkyl, amino, alkylamino, and dialkylamino:

Z is selected from the group consisting of C_1-4 alkyl, amino, alkylamino, dialkylamino, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, (amino)heteroaryl)alkyl, and (amino)(hydroxy)alkyl, and R¹, R², and R⁷ are as defined above in connection with Formula I.

In another embodiment, Compounds of the Disclosure are compounds having Formula I, and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein:

X is selected from the group consisting of:

R⁸ is selected from the group consisting of C_1-4 alkyl, amino, alkylamino, and dialkylamino, and R¹, R², A, and Z are as defined above in connection with Formula I.

In another embodiment, Compounds of the Disclosure are compounds having any one of Formulae I-XVII, and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, wherein R¹ is selected from the group consisting of C₁0.4 alkyl and C_3-6 cycloalkyl. In another embodiment, R¹ is cyclopropyl. In another embodiment, R² is hydrogen.

In another embodiment, a Compound of the Disclosure is not 5-cyclopropyl-N-(pyridin-3-yl)-1,2-oxazole-3-carboxamide.

In another embodiment, Compounds of the Disclosure are compounds of Table 1, and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, or different pharmaceutically acceptable salt thereof. The chemical names of the compounds of Table 1 are provided in Table 1A.

In another embodiment, Compounds of the Disclosure are compounds of Table 1A, and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof.

In another embodiment, Compounds of the Disclosure are compounds of Table 2, and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, or different pharmaceutically acceptable salt thereof.

In another embodiment, Compounds of the Disclosure is the compound of Table 3, and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof.

In another embodiment, Compounds of the Disclosure are compounds of Tables 1 and 2, and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, or different pharmaceutically acceptable salt thereof.

In another embodiment, Compounds of the Disclosure are compounds of Tables 1-3, and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, or different pharmaceutically acceptable salt thereof.

In another embodiment, Compounds of the Disclosure are compounds of Table 1, Table 1A, Table 2, and Table 3, and the pharmaceutically acceptable salts or solvates, e.g., hydrates, thereof, or different pharmaceutically acceptable salt thereof

It should be appreciated that the Compounds of the Disclosure in certain embodiments are the free base, various salts, and hydrate forms, and are not limited to the particular salt listed in Table 1, Table 2, and Table 3.

TABLE 1
Cpd.		Salt
No.	Structure	Form

2		None
3		None
4		HCl
5		None
6		TFA
7		TFA
8		HCl
9		HCl
10		HCl
11		HCl
12		None
13		HCl
14		HCl
15		HCl
16		HCl
17		HCl
18		None
19		None
20		None
21		HCl
22		HCl
23		TFA
24		HCl
25		None
26		None
27		None
28		None
29		None
30		None
31		None
32		None
33		HCl
34		HCl
35		HCOOH
36		None
37		HCl
38		HCl
39		HCl
40		HCl
41		HCl
42		None
43		None
44		HCl
45		HCl
46		None
47		None
48		None
49		HCl
50		None
51		None
52		None
53		None
54		None
55		None
56		HCl
57		None
58		None
59		TFA
60		TFA
61		None
62		HCl
63		HCl
64		None
65		TFA
66		HCl
67		HCl
68		HCl
69		HCl
70		HCl
71		None
72		HCl
73		HCl
74		HCl
75		HCl
76		HCl
77		HCl
78		HCl
79		HCl
80		HCl
81		None
82		HCl
83		HCl
84		HCl
85		HCl
86		HCl
87		HCl
88		HCl
89		HCl
90		HCl
91		HCl
92		HCl
93		HCl
94		HCl
95		None
96		HCl
97		HCl
98		HCl
99		HCl
100		HCl
101		HCl
102		HCl
103		TFA
104		TFA
105		HCl
106		HCl
107		TFA
108		TFA
109		HCl
110		HCl
111		HCl
112		HCl
113		HCl
114		HCl
115		HCl
116		HCl
117		HCl
118		HCl
119		TFA
120		HCl
121		HCl
122		None
123		None
124		None
125		None
126		None
127		None
128		None
129		None
130		TFA
131		HCl
132		HCl
133		HCl
134		None
135		None
136		None
137		None
138		None
139		HCl
140		TFA
141		HCl
142		TFA
143		None
144		None
145		None
146		None
147		TFA
148		None
149		None
150		None
151		None
152		HCl
153		TFA
154		None
155		HCOOH
156		None
157		None
158		TFA
159		TFA
160		HCl
161		HCl
162		HCl
163		HCl
164		HCl
165		None
166		None
167		None
168		None
169		TFA
170		HCl
171		HCl
172		HCl
173		HCl
174		HCl
175		None
176		HCl
177		HCl
178		HCl
179		HCl
180		HCl
181		HCl
182		HCl
183		HCl
184		HCl
185		HCl
186		HCl
187		HCl
188		HCl
189		HCl
190		HCl
191		HCl
192		HCl
193		HCl
194		HCl
195		HCl
196		HCl
197		HCl
198		TFA
199		TFA
200		HCl
201		HCl
202		HCl
203		HCl
204		HCl
205		HCl
206		HCl
207		HCl
208		HCl
209		HCl
210		HCl
211		HCl
212		None
213		HCl
214		HCl
215		HCl
216		HCl
218		HCl
219		HCl
220		HCl
221		HCl
222		HCl
223		HCl
224		HCl
225		HCl
226		HCl
227		HCl
228		HCl
229		HCl
230		HCl
231		HCl
232		HCl
233		TFA
234		HCl
235		TFA
236		TFA
237		HCl
238		TFA
239		TFA
240		TFA
241		HCl
242		HCl
243		HCl
244		TFA
245		TFA
246		TFA
247		HCl
248		HCOOH
249		HCl
250		HCl
251		HCl
252		HCl
253		TFA
254		HCl
255		HCl
256		HCl
257		TFA
258		TFA
259		TFA
260		TFA
261		HCl
262		TFA
263		TFA
264		HCl
265		TFA
266		HCl
267		TFA
268		HCl
269		TFA
270		HCl
271		TFA
272		TFA
273		TFA
274		TFA
275		TFA
276		TFA
277		TFA
278		TFA
279		TFA
280		HCl
281		HCl
282		TFA
283		TFA
284		TFA
285		TFA
286		TFA
287		TFA
288		TFA
290		TFA
291		HCl
292		None
293		TFA
294		TFA
295		TFA
296		TFA
297		None
298		None
299		None
300		HCl
301		HCl
302		HCl
303		None
304		None
305		HCl
306		HCl
307		HCl
308		HCl
309		HCl
310		HCl
311		None
312		HCl
313		HCl
314		HCl
315		HCl
316		None
317		HCl
318		HCl
319		HCl
320		HCl
321		HCl
322		HCl
323		None
324		HCl
325		None
326		HCl
327		HCl
328		HCl
329		HCl
330		HCl
331		HCl
332		None
333		None
334		HCl
335		HCl
336		HCl
337		HCl
338		HCl
339		HCl
340		HCl
341		HCl
342		HCl
343		None
344		HCl
345		HCl
346		HCl
347		HCl
348		HCl
349		HCl
350		None
351		HCl
352		HCl
353		TFA
354		HCl
355		TFA
356		HCl
357		None
358		TFA
359		TFA
360		HCl
361		HCl
362		None
363		HCl
364		HCl
365		TFA
366		HCl
367		HCl
368		None
369		HCl
370		HCl
371		None
372		TFA
373		TFA
374		None
375		None
376		HCl
377		None
378		None
379		HCl
380		HCl
381		HCl
382		None
383		None
384		HCl
385		HCl
386		HCl
387		HCl
388		None
389		None
390		None
391		None
392		HCl
393		None
394		None
395		None
396		HCl
397		None
398		HCl
399		None

TABLE 2
					SMYD2
					Biochem
Cpd.		Salt		LCMS	IC50
No.	Structure	Form	Chemical Name	M + H	(μM)*

400		None	N-(1-acetylazetidin-3-yl)-5- cyclopropyl-1,2-oxazole-3- carboxamide	250.1	>50.0
401		None	5-cyclopropyl-N-[1-(2- methylpropyl)azetidin-3-yl]-1,2- oxazole-3-carboxamide	264.2	1.55823
402		None	5-cyclopropyl-N-[1-(2- fluoroethyl)azetidin-3-yl]-1,2- oxazole-3-carboxamide	254.1	7.78955
403		None	5-cyclopropyl-N-(1- methanesulfonylazetidin-3-yl)-1,2- oxazole-3-carboxamide	286.1	>50.0
404		None	5-cyclopropyl-N-[1-(2- hydroxyethyl)azetidin-3-yl]-1,2- oxazole-3-carboxamide	252.2	4.67695
405		None	5-cyclopropyl-N-[1-(oxetan-3- yl)azetidin-3-yl]-1,2-oxazole-3- carboxamide	264.2	>50.0
406		None	5-cyclopropyl-N-[1-(2,2- difluoroethyl)azetidin-3-yl]-1,2- oxazole-3-carboxamide	272.2	>50.0
407		None	5-cyclopropyl-N-[1-(2- methoxyethyl)azetidin-3-yl]-1,2- oxazole-3-carboxamide	266.2	2.68352
408		None	5-cyclopropyl-N-[1-(2,2,2- trifluoroethyl)azetidin-3-yl]-1,2- oxazole-3-carboxamide	290.2	>50.0
409		None	5-cyclopropyl-N-(1,3- dimethylazetidin-3-yl)-1,2- oxazole-3-carboxamide	236.2	>50.0
410		None	5-cyclopropyl-N-[1-(propan-2- yl)azetidin-3-yl]-1,2-oxazole-3- carboxamide	250.1	1.04736
411		None	5-cyclopropyl-N-(1- methylazetidin-3-yl)-1,2- oxazole-3-carboxamide	222.1	5.33712
412		None	5-cyclopropyl-N-(1- ethylazetidin-3-yl)-1,2- oxazole-3-carboxamide	236.2	1.50829
413		None	5-cyclopropyl-N-(1- cyclopropylazetidin-3-yl)-1,2- oxazole-3-carboxamide	248.1	1.46882
414		None	5-cyclopropyl-N-(1- propylazetidin-3-yl)-1,2- oxazole-3-carboxamide	250.2	1.70142
415		None	N-(1-benzylazetidin-3-yl)-5- cyclopropyl-1,2- oxazole-3-carboxamide	298.1	2.47021
416		None	5-cyclopropyl-N-[1-(1- phenylpropyl)azetidin-3-yl]-1,2- oxazole-3-carboxamide	326.1	0.61999
417		None	5-cyclopropyl-N-[1-(2-hydroxy-1- phenylethyl)azetidin-3-yl]-1,2- oxazole-3-carboxamide	328.2	2.22554
418		None	5-cyclopropyl-N-[1-(1- phenylethyl)azetidin-3-yl]-1,2- oxazole-3-carboxamide	312.1	0.58861
419		None	5-cyclopropyl-N-[1-(2- phenylethyl)azetidin-3-yl]-1,2- oxazole-3-carboxamide	312.1	2.18872
420		HCl	N-(azetidin-3-yl)-5-cyclopropyl- 1,2-oxazole-3-carboxamide	208.1
421		None	5-cyclopropyl-N-(pyridin-3-yl)- 1,2-oxazole-3-carboxamide	230.2	>50.0
422		None	5-cyclopropyl-N-(pyridin-4-yl)- 1,2-oxazole-3-carboxamide	230.2	>50.0
423		None	5-cyclopropyl-N-{[1-(propan-2- yl)azetidin-3-yl]methyl}-1,2- oxazole-3-carboxamide	264.1	>50.0
424		None	5-cyclopropyl-N-{[1- (cyclopropylmethyl)azetidin-3- yl]methyl}-1,2- oxazole-3-carboxamide	276.1	>50.0
425		None	5-cyclopropyl-N-[(1- propylazetidin-3-yl)methyl]- 1,2-oxazole-3-carboxamide	264.1	>50.0
426		None	N-(azetidin-3-ylmethyl)-5- cyclopropyl-1,2-oxazole-3- carboxamide	222.1	33.04122
427		None	(±)-cis-5-cyclopropyl-N-[5- methyl-1-(propan-2-yl)azepan- 4-yl]-1,2-oxazole-3-carboxamide	306.2	>50.0
*IC50 values are an average of n = 1 to n = 50

TABLE 3
					SMYD2
					Biochem
Cpd.		Salt		LCMS	IC50
No.	Structure	Form	Chemical Name	M + H	(μM)*
428		none	N-(1-((1-(4-chlorobenzyl)-1H- pyrazol-4-yl)methyl)azetidin-3- yl)-5-cyclopropylisoxazole-3- carboxamide	412.2	0.0095
*IC50 values are an average of n = 1 to n = 50

TABLE 1A
			SMYD3
			Biochem	SMYD3
		LCMA	IC50	cell IC50
Cpd. No.	Chemical Name	M + H	(μM)*	(μM)*

2	N-(1-((4-	447.15	48.11
	acetamidophenyl)sulfonyl)piperidin-4-
	yl)-5-cyclobutylisoxazole-3-carboxamide
3	N-(4-((4-	431.91	23.37
	acetamidophenyl)sulfonyl)cyclohexyl)-5-
	cyclopropylisoxazole-3-carboxamide
4	5-cyclopropyl-N-(piperidin-4-	250.05	31.8
	ylmethyl)isoxazole-3-carboxamide
5	5-cyclopropyl-N-((1-methylpiperidin-4-	264.10	39.33
	yl)methyl)isoxazole-3-carboxamide
6	N-((1s,3s)-3-((4-	419.25	32.91
	acetamidophenyl)sulfonamido)cyclobutyl)
	5-cyclopropylisoxazole-3-carboxamide
7	N-((1r,3r)-3-((4-	419.3	46.75
	acetamidophenyl)sulfonamido)cyclobutyl)
	5-cyclopropylisoxazole-3-carboxamide
8	N-((1r,4r)-4-aminocyclohexyl)-5-	375.83	20.73
	cyclopropyl-4-iodoisoxazole-3-
	carboxamide
9	N-((1r,4r)-4-aminocyclohexyl)-5-(2-	254	33.25
	hydroxyethyl)isoxazole-3-carboxamide
10	N3-((1r,4r)-4-ammocyclohexyl)-5-	349.10	38.97
	cyclopropyl-N4-isobutylisoxazole-3,4-
	dicarboxamide
11	N-((1r,4r)-4-aminocyclohexyl)-5-	236.1	27.42
	vinylisoxazole-3-carboxamide
12	5-cyclopropyl-N-(2,2-dimethyl-1-	299.05	12.75
	phenylpropyl)isoxazole-3-carboxamide
13	N3-((1r,4r)-4-aminocyclohexyl)-5-	293.15	22.42
	cyclopropylisoxazole-3,4-dicarboxamide
14	N-(4-(aminomethyl)phenyl)-5-	259.1	10.54
	cyclopropylisoxazole-3-carboxamide
15	N-(1-(4-aminophenyl)ethyl)-5-	271.8	40.11
	cyclopropylisoxazole-3-carboxamide
16	N-(4-(1-aminoethyl)phenyl)-5-	272.85	6.52
	cyclopropylisoxazole-3-carboxamide
17	N-((1r,3r)-3-aminocyclobutyl)-5-	222.05	24.5
	cyclopropylisoxazole-3-carboxamide
18	5-cyclopropyl-N-(1-(4-fluorophenyl)-	289.1	41.22
	propyl)isoxazole-3-carboxamide
19	5-cyclopropyl-N-(1-(4-fluorophenyl)-2-	303.05	16.38
	methylpropyl)isoxazole-3-carboxamide
20	5-cyclopropyl-N-(1-(4-methoxyphenyl)-	329.1	5.85
	2,2-dimethylpropyl)isoxazole-3-
	carboxamide
21	N-((1r,4r)-4-aminocyclohexyl)-5-(3-	268.1	40.64
	hydroxypropyl)isoxazole-3-carboxamide
22	N-(azepan-4-yl)-5-cyclopropylisoxazole-	250.15	14.88
	3-carboxamide
23	N-(3-(azetidin-3-ylamino)cyclobutyl)-5-	277.1	32.28
	cyclopropylisoxazole-3-carboxamide
24	N-((1r,4r)-4-aminocyclohexyl)-5-	234.79	24.63
	isopropylisoxazole-3-carboxamide	(-NH2)
25	5-cyclopropyl-N-(cyclopropyl(4-	301.05	16.21
	fluorophenyl)methyl)isoxazole-3-
	carboxamide
26	5-cyclopropyl-N-(3,3-dimethylbutan-2-	237.05	45.92
	yl)isoxazole-3-carboxamide
27	N-(1-(4-aminophenyl)-2,2-	336.25	8.54
	dimethylpropyl)-5-cyclopropylisoxazole-	(+Na)
	3-carboxamide
28	5-cyclopropyl-N-(2,2-dimethyl-1-	300.15	38.32
	(pyridin-2-yl)propyl)isoxazole-3-
	carboxamide
29	5-cyclopropyl-N-(1-(4-	275	43.79
	fluorophenyl)ethyl)isoxazole-
	3-carboxamide
30	5-cyclopropyl-N-(2,2-dimethylpentan-3-	251.15	27.12
	yl)isoxazole-3-carboxamide
31	N-(1-(4-acetamidophenyl)-2,2-	356.25	12.82
	dimethylpropyl)-5-cyclopropylisoxazole-
	3-carboxamide
32	N-(1-(4-chlorophenyl)-2,2-	333.15	9.03
	dimethylpropyl)-5-cyclopropylisoxazole-
	3-carboxamide
33	N-(4-(aminomethyl)-2-methylphenyl)-5-	272.90	7.79
	cyclopropylisoxazole-3-carboxamide
34	N-(4-(aminomethyl)-2-chlorophenyl)-5-	293.05	6.45
	cyclopropylisoxazole-3-carboxamide	(295.00)
35	N-((5-amino-1,3,3-trimethylcyclohexyl)-	306.30	12.99
	methyl)-5-cyclopropylisoxazole-3-
	carboxamide
36	5-cyclopropyl-N-(2,2-dimethyl-1-(p-	312.90	27.61
	tolyl)propyl)isoxazole-3-carboxamide
37	N-(4-(2-aminoethyl)phenyl)-5-	272.15	7.25
	cyclopropylisoxazole-3-carboxamide
38	N-(4-(1-aminopropyl)phenyl)-5-	286.96	4.43
	cyclopropylisoxazole-3-carboxamide
39	N-(4-(1-amino-2,2-	297	2.52
	dimethylpropyl)phenyl)-5-	(-NH3)
	cyclopropylisoxazole-3-carboxamide
40	N-(4-(ammomethyl)-2-iodophenyl)-5-	366.9	7.21
	cyclopropylisoxazole-3-carboxamide	(-NH3)
41	N-(5-(aminomethyl)pyridin-2-yl)-5-	259.15	22.53
	cyclopropylisoxazole-3-carboxamide
42	5-ethyl-N-(1-(3-methoxyphenyl)-2,2-	317.20	24.62
	dimethylpropyl)isoxazole-3-carboxamide
43	5-cyclopropyl-N-(1-(3-methoxyphenyl)-	329.25	18.91
	2.2-dimethylpropyl)isoxazole-3-
	carboxamide
44	N-(4-(1-amino-2-methylpropyl)phenyl)-	300.04	2.5
	5-cyclopropylisoxazole-3-carboxamide
45	N-(5-(aminomethyl)-6-methylpyridin-2-	273.15	29.74
	yl)-5-cyclopropylisoxazole-3-
	carboxamide
46	5-cyclopropyl-N-(2,2-dimethyl-1-(m-	313.25	22.2
	tolyl)propyl)isoxazole-3-carboxamide
47	5-ethyl-N-(1-(3-fluorophenyl)-2,2-	305.15	7.26
	dimethylpropyl)isoxazole-3-carboxamide
48	5-cyclopropyl-N-(1-(3-fluorophenyl)-	317.25	7.92
	2.2-dimethylpropyl)isoxazole-3-
	carboxamide
49	5-cyclopropyl-N-(phenyl(piperidin-4-	326.25	8.09
	yl)methyl)isoxazole-3-carboxamide
50	5-cyclopropyl-N-(2,2-dimethyl-1-	300.15	9.99
	(pyridin-3-yl)propyl)isoxazole-3-
	carboxamide
51	5-cyclopropyl-N-(2,2-dimethyl-1-	300.20	4.08
	(pyridin-4-yl)propyl)isoxazole-3-
	carboxamide
52	N-(1-cyclobutyl-2,2-dimethylpropyl)-5-	277.2	7.4
	cyclopropylisoxazole-3-carboxamide
53	N-(1-cyclopentyl-2,2-dimethylpropyl)-5-	291.25	10.58
	cyclopropylisoxazole-3-carboxamide
54	N-(1-cyclohexyl-2,2-dimethylpropyl)-5-	305.01	15.14
	cyclopropylisoxazole-3-carboxamide
55	N-(cyclobutyl(phenyl)methyl)-5-	297.2	38.47
	cyclopropylisoxazole-3-carboxamide
56	N-(4-(aminomethyl)-3-chlorophenyl)-5-	291.95	16.4
	cyclopropylisoxazole-3-carboxamide
57	N-(1-(3-chlorophenyl)-2,2-	321.2	6.06
	dimethylpropyl)-5-ethylisoxazole-3-
	carboxamide
58	N-(1-(3-chlorophenyl)-2,2-	333.2	9.97
	dimethylpropyl)-5-cyclopropylisoxazole-
	3-carboxamide
59	N-(2-(4-amino-4-	306	10.23
	methylcyclohexyl)propan-
	2-yl)-5-cyclopropylisoxazole-3-
	carboxamide
60	N-(4-(2-aminopropan-2-yl)-1-	306	2.98
	methylcyclohexyl)-
	5-cyclopropylisoxazole-3-carboxamide
61	5-cyclopropyl-N-(2,2-dimethyl-1-	306.15	6.29
	(thiazol-4-yl)propyl)isoxazole-3-
	carboxamide
62	5-cyclopropyl-N-(2,2-dimethyl-1-	306.25	4.35
	(piperidin-4-yl)propyl)isoxazole-3-
	carboxamide
63	N-(((1r,4r)-4-aminocyclohexyl)(phenyl)-	340.25	6.99
	methyl)-5-cyclopropylisoxazole-3-
	carboxamide
64	5-ethyl-N-(phenyl(tetrahydro-2H-pyran-	337.25	37.06
	4-yl)methyl)isoxazole-3-carboxamide	(+Na)
65	N-(3-(aminomethyl)-3,5,5-	306.15	14.07
	trimethylcyclohexyl)-
	5-cyclopropylisoxazole-3-carboxamide
66	5-cyclopropyl-N-((S)-phenyl((S)-	312.2	34.2
	pyrrolidin-2-yl)methyl)isoxazole-3-
	carboxamide
67	N-(((1s,4s)-4-	340.25	13
	aminocyclohexyl)(phenyl)methyl)-
	5-cyclopropylisoxazole-3-carboxamide
68	5-cyclopropyl-N-(2,2-dimethyl-1-	306.25	4.38
	(piperidin-3-yl)propyl)isoxazole-3-
	carboxamide
69	5-cyclopropyl-N-(phenyl(piperidin-3-	326.25	12.68
	yl)methyl)isoxazole-3-carboxamide
70	N-(4-(aminomethyl)-3-methylphenyl)-5-	272.97	8.22
	cyclopropylisoxazole-3-carboxamide
71	5-ethyl-N-((1-methylpiperidin-4-	328.25	20.51
	yl)(phenyl)methyl)isoxazole-3-
	carboxamide
72	N-((3-chlorophenyl)(piperidin-4-	348.2	1.4
	yl)methyl)-5-ethylisoxazole-3-
	carboxamide
73	N-((3-chlorophenyl)(piperidin-4-	360.25	2.59
	yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
74	5-ethyl-N-(phenyl(piperidin-4-yl)-	314.2	7.44
	methyl)-isoxazole-3-carboxamide
75	N-((3-((4-chlorobenzyl)carbamoyl)	493.3	13.58
	phenyl)(piperidin-4-yl)methyl)-5-
	cyclopropylisoxazole-3-carboxamide
76	N-((3-	465.35	34.82
	((cyclohexylmethyl)carbamoyl)phenyl)-
	(piperidin-4-yl)methyl)-5-
	cyclopropylisoxazole-3-carboxamide
77	N-((3-(cyclohexylcarbamoyl)phenyl)-	451.4	49.05
	(piperidin-4-yl)methyl)-5-
	cyclopropylisoxazole-3-carboxamide
78	N-(4-(ammomethyl)-3-methoxyphenyl)-	270.92	32.1
	5-cyclopropylisoxazole-3-carboxamide	(-NH2)
79	5-cyclopropyl-N-((S)-1-(((S)-1,6-	368.25	15.03
	diamino-1-oxohexan-2-yl)amino)-
	3-hydroxy-1-oxopropan-2-yl)isoxazole-
	3-carboxamide
80	N-((2-chlorophenyl)(piperidin-4-	348.15	15.86
	yl)methyl)-5-ethylisoxazole-3-
	carboxamide
81	5-cyclopropyl-N-((1-methylpiperidin-4-	340.2	22.81
	yl)(phenyl)methyl)isoxazole-3-
	carboxamide
82	N-((2-chlorophenyl)(piperidin-4-	360.20	9.05
	yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
83	5-cyclopropyl-N-(piperidin-4-yl(3-	460.3	30.8
	((pyridin-3-ylmethyl)carbamoyl)-
	phenyl)methyl)isoxazole-
	3-carboxamide
84	5-cyclopropyl-N-(piperidin-4-yl(3-((3-	480.4	10.57
	(pyrrolidin-1-yl)propyl)carbamoyl)
	phenyl)methyl)isoxazole-
	3-carboxamide
85	5-cyclopropyl-N-((3-((2-(piperidin-1-	480.4	12.59
	yl)ethyl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)isoxazole-3-carboxamide
86	5-cyclopropyl-N-((3-((2-	475.35	20.84
	(methylsulfonyl)ethyl)carbamoyl)phenyl)-
	(piperidin-4-yl)methyl)isoxazole-3-
	carboxamide
87	5-cyclopropyl-N-((3-((3-	454.35	24.56
	(dimethylamino)propyl)carbamoyl)-
	phenyl)(piperidin-4-yl)methyl)-
	isoxazole-3-carboxamide
88	5-cyclopropyl-N-(piperidin-4-yl(3-	460.35	37.32
	((pyridin-4-ylmethyl)carbamoyl)-
	phenyl)methyl)isoxazole-
	3-carboxamide
89	N-((3-(((1r,4r)-4-aminocyclohexyl)-	466.35	39.36
	carbamoyl)phenyl)(piperidin-
	4-yl)methyl)-5-
	cyclopropylisoxazole-3-carboxamide
90	5-cyclopropyl-N-((3-((pent-4-yn-1-		11.77
	yloxy)methyl)phenyl)(piperidine-4-
	yl)methyl)isoxazole-
	3-carboxamide
91	N-(4-(aminomethyl)-2-isopropylphenyl)-	283.02	6.08
	5-cyclopropylisoxazole-3-carboxamide	(−NH2)
92	N-((1r,4r)-4-aminocyclohexyl)-5-	266.1	38.15
	isobutylisoxazole-3-carboxamide
93	N-((1r,4r)-4-ammocycloliexyl)-5-	252.1	9.93
	propylisoxazole-3-carboxamide
94	N-(4-(aminomethyl)-3-iodophenyl)-5-	383.98	19.48
	cyclopropylisoxazole-3-carboxamide
95	N-(1-(2H-indazol-4-yl)-2,2-	339.01	6.82
	dimethylpropyl)-5-cyclopropylisoxazole-
	3-carboxamide
96	5-cyclopropyl-N-((3-((1-	494.45	48.53
	isopropylpiperidin-4-
	yl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)isoxazole-
	3-carboxamide
97	5-cyclopropyl-N-((3-((3-	475.40	25.88
	hydroxybenzyl)carbamoyl)phenyl)-
	(piperidin-4-yl)methyl)isoxazole-3-
	carboxamide
98	5-cyclopropyl-N-((3-	409.3	46.85
	(cyclopropylcarbamoyl)phenyl)(piperidin-
	4-yl)methyl)isoxazole-3-carboxamide
99	5-cyclopropyl-N-(piperidin-4-yl(3-	394.24	11.9
	((prop-2-yn-1-
	yloxy)methyl)phenyl)methyl)isoxazole-
	3-carboxamide
100	5-cyclopropyl-N-((3-	411.3	17.98
	((diethylamino)methyl)phenyl)(piperidin-
	4-yl)methyl)isoxazole-3-carboxamide
101	N-(4-(aminomethyl)-2-ethylphenyl)-5-	268.99	3
	cyclopropylisoxazole-3-carboxamide	(−NH2)
102	N-((1r,4r)-4-aminocyclohexyl)-5-	266.10	32.62
	butylisoxazole-3-carboxamide
103	5-cyclopropyl-N-((3-((2-hydroxy-3-	496.4	14.1
	(pyrrolidin-1-yl)propyl)carbamoyl)-
	phenyl)(piperidin-4-yl)methyl)-
	isoxazole-3-carboxamide
104	5-cyclopropyl-N-((3-((3-	441.3	11.17
	hydroxypropyl)(methyl)carbamoyl)-
	phenyl)(piperidin-4-yl)methyl)-
	isoxazole-3-carboxamide
105	5-cyclopropyl-N-(piperidin-4-yl(3-	460.35	45.5
	((pyridin-2-ylmethyl)carbamoyl)-
	phenyl)methyl)isoxazole-
	3-carboxamide
106	5-cyclopropyl-N-(piperidin-4-yl(3-	446.3	4.76
	(pyridin-3-ylcarbamoyl)phenyl)methyl)-
	isoxazole-3-carboxamide
107	5-cyclopropyl-N-((3-(((3-	464.35	16.78
	fluorobenzyl)oxy)methyl)phenyl)-
	(piperidin-4-yl)methyl)isoxazole-3-
	carboxamide
108	N-((3-((but-2-yn-1-yloxy)methyl)phenyl)-	408.3	6.36
	(piperidin-4-yl)methyl)-5-
	cyclopropylisoxazole-3-carboxamide
109	5-cyclopropyl-N-((3-(((3-hydroxypropyl)-	427.35	34.01
	(methyl)amino)methyl)phenyl)(piperidin-
	4-yl)methyl)isoxazole-
	3-carboxamide
110	5-cyclopropyl-N-((3-(((2-iodobenzyl)-	572.3	4.98
	oxy)methyl)phenyl)(piperidin-4-yl)-
	methyl)isoxazole-3-carboxamide
111	5-cyclopropyl-N-((3-((2-	490.4	11.35
	methoxyphenethoxy)methyl)phenyl)-
	(piperidin-4-yl)methyl)isoxazole-3-
	carboxamide
112	5-cyclopropyl-N-((3-((2-	474.4	11.25
	methylplienethoxy)methyl)phenyl)-
	(piperidin-4-yl)methyl)isoxazole-3-
	carboxamide
113	5-cyclopropyl-N-((3-	356.25	3.67
	(hydroxymethyl)phenyl)(piperidin-4-
	yl)methyl)isoxazole-3-carboxamide
114	N-(4-(aminomethyl)-3-ethylphenyl)-5-	268.99	13.86
	cyclopropylisoxazole-3-carboxamide	(−NH2)
115	5-cyclopropyl-N-((3-((3-	427.3	17.42
	hydroxypropyl)carbamoyl)phenyl)-
	(piperidin-4-yl)methyl)isoxazole-3-
	carboxamide
116	5-cyclopropyl-N-((3-((2-	475.35	18.31
	hydroxybenzyl)carbamoyl)phenyl)-
	(piperidin-4-yl)methyl)isoxazole-3-
	carboxamide
117	5-cyclopropyl-N-(piperidin-4-yl(3-	446.40	9.3
	(pyridin-2-ylcarbamoyl)phenyl)methyl)-
	isoxazole-3-carboxamide
118	5-cyclopropyl-N-((3-((2-	427.35	19.37
	(ethylamino)ethoxy)methyl)phenyl)-
	(piperidin-4-yl)methyl)isoxazole-3-
	carboxamide
119	N-((3-((2-aminoethoxy)methyl)phenyl)-	399.30	13.19
	(piperidin-4-yl)methyl)-5-
	cyclopropylisoxazole-3-carboxamide
120	5-cyclopropyl-N-(piperidin-4-yl(3-	398.35	20.62
	(propoxymethyl)phenyl)methyl)isoxazole-
	3-carboxamide
121	N-(4-(1-amino-4-hydroxybutyl)phenyl)-	316.10	4.36
	5-cyclopropylisoxazole-3-carboxamide
122	5-cyclopropyl-N-(1-	305.10	11.83
	oxaspiro[5.5]undecan-4-yl)isoxazole-3-
	carboxamide
123	5-cyclopropyl-N-(3-	319.3	4.79
	ethoxyspiro[3.5[nonan-1-yl)isoxazole-3-
	carboxamide
124	5-cyclopropyl-N-(3-	305.10	26.51
	oxaspiro[5.5]undecan-9-yl)isoxazole-3-
	carboxamide
125	N-(1-benzyl-6-methylpiperidin-3-yl)-5-	340.10	21.2
	cyclopropylisoxazole-3-carboxamide
126	5-cyclopropyl-N-(3-phenylcyclopentyl)-	297.1	29.97
	isoxazole-3-carboxamide
127	5-cyclopropyl-N-(2-(3,4-	335.1	49.59
	difluorophenyl)tetrahydrofuran-3-yl)-
	isoxazole-3-carboxamide
128	5-cyclopropyl-N-(2,2-	265.4	44.55
	dimethyltetrahydro-2H-pyran-
	4-yl)isoxazole-3-carboxamide
129	5-cyclopropyl-N-(6-oxaspiro[4.5]decan-	291.1	18.41
	9-yl)isoxazole-3-carboxamide
130	N-((3-((((1r,4r)-4-		1.38
	aminocyclohexyl)oxy)methyl)phenyl)-
	(piperidin-4-yl)methyl)-5-
	cyclopropylisoxazole-3-carboxamide
131	5-cyclopropyl-N-((3-		16.6
	((isopropyl(tetrahydro-2H-pyran-
	4-yl)amino)methyl)phenyl)(piperidin-
	4-yl)methyl)isoxazole-3-
	carboxamide
132	methyl 5-(aminomethyl)-2-	299.83	48.66
	(5-cyclopropylisoxazole-3-	(M − NH2)
	carboxamido)benzoate
133	5-cyclopropyl-N-(piperidin-4-yl(3-	466.12	6.48
	(pyridin-4-
	ylcarbamoyl)phenyl)methyl)isoxazole-3-
	carboxamide
134	N-(3-butoxy-2,2-dimethylcyclobutyl)-5-	307.3	18.73
	cyclopropylisoxazole-3-carboxamide
135	5-cyclopropyl-N-(6-hydroxy-1,2,3,4-	299.10	23.68
	tetiahydronaphthalen-2-yl)isoxazole-3-
	carboxamide
136	5-cyclopropyl-N-(3-isobutoxy-2,2-	307.2	9.54
	dimethylcyclobutyl)isoxazole-3-
	carboxamide
137	5-cyclopropyl-N-(2-(4-	331.3	2.56
	fluorophenyl)tetrahydro-2H-pyran-4-
	yl)isoxazole-3-carboxamide
138	N-(1-(1-benzylpyrrolidin-3-yl)ethyl)-5-	340.3	24.96
	cyclopropylisoxazole-3-carboxamide
139	5-cyclopropyl-N-((3-(((2-	413.25	41.77
	hydroxyethyl)(methyl)amino)methyl)-
	phenyl)(piperidin-4-yl)methyl)
	isoxazole-3-carboxamide
140	5-cyclopropyl-N-((3-((4-methyl-1H-	462.17	28.35
	pyrrole-2-
	carboxamido)methyl)phenyl)(piperidin-
	4-yl)methyl)isoxazole-3-carboxamide
141	5-cyclopropyl-N-((3-((3-(4-methyl-1H-	491.35	25.42
	pyrazol-1-
	yl)propanamido)methyl)phenyl)(piperidin-
	4-yl)methyl)isoxazole-3-carboxamide
142	N-((3-carbamoylphenyl)(piperidin-4-	369.15	3.6
	yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
143	N-((1r,4r)-4-aminocyclohexyl)-5-	260.1	18.56
	(difluoromethyl)isoxazole-3-
	carboxamide
144	5-cyclopropyl-N-(2-isobutyltetrahydro-	293.2	7.16
	2H-pyran-4-yl)isoxazole-3-carboxamide
145	N-(1-(1-cyclobutylpiperidin-3-yl)ethyl)-	318.4	18.08
	5-cyclopropylisoxazole-3-carboxamide
146	5-cyclopropyl-N-(2-isopropyl-4,5,6,7-	315.1	27.28
	tetrahydro-2H-indazo1-6-yl)isoxazole-3-
	carboxamide
147	N-(4-(aminomethyl)-2-	310.15	4.07
	(hydroxymethyl)phenyl)-5-	(+Na)
	cyclopropylisoxazole-3-carboxamide
148	N-(4-(1-amino-3-(pyridin-2-	363.3	0.97
	yl)propyl)phenyl)-5-
	cyclopropylisoxazole-3-carboxamide
149	N-(4-(1-amino-3-(pyridin-3-	363.3	0.62
	yl)propyl)phenyl)-5-
	cyclopropylisoxazole-3-carboxamide
150	N-(4-(1-amino-3-(pyridin-4-	363.3	1.39
	yl)propyl)phenyl)-5-
	cyclopropylisoxazole-3-carboxamide
151	N-(4-(1-amino-3-phenylpropyl)phenyl)-	345.12	2.34
	5-cyclopropylisoxazole-3-carboxamide	(M − NH2)
152	5-cyclopropyl-N-((1-glycylpiperidin-4-	383.4	4.47
	yl)(phenyl)methyl)isoxazole-3-
	carboxamide
153	N-((1-(D-alanyl)piperidin-4-	397.35	1.27
	yl)(phenyl)methyl)-5-
	cyclopropylisoxazole-3-carboxamide
154	N-((1-(L-alanyl)piperidin-4-	397.35	1.53
	yl)(phenyl)methyl)-5-
	cyclopropylisoxazole-3-carboxamide
155	5-cyclopropyl-N-((3-	445.4	4.15
	(phenylcarbamoyl)phenyl)(piperidin-4-
	yl)methyl)isoxazole-3-carboxamide
156	(±)-cis-5-cyclopropyl-N-(3-	275.4	31.11
	cyclopropylcyclohexyl)isoxazole-3-
	carboxamide
157	(±)-trans-5-cyclopropyl-N-(3-	275.3	39.9
	cyclopropylcyclohexyl)isoxazole-3-
	carboxamide
158	(±)-cis-5-cyclopropyl-N-(3-(1-methyl-	315.1	10.07
	1H-imidazol-2-yl)cyclohexyl)isoxazole-
	3-carboxamide
159	(±)-trans-5-cyclopropyl-N-((1S,3S)-3-(1	315.1	14.94
	methyl-1H-imidazol-2-
	yl)cyclohexyl)isoxazole-3-carboxamide
160	N-(4-(aminomethyl)-3-isopropylphenyl)	322.2	17.14
	5-cyclopropylisoxazole-3-carboxamide	(+Na)
161	N-(4-(aminomethyl)-3-	310.2	12.36
	(hydroxymethyl)phenyl)-5-	(+Na)
	cyclopropylisoxazole-3-carboxamide
162	(R)-5-cyclopropyl-N-(piperidin-4-yl(3-	446.3	49
	(pyridin-3-
	ylcarbamoyl)phenyl)methyl)isoxazole-3-
	carboxamide
163	(S)-5-cyclopropyl-N-(piperidin-4-yl(3-	446.3	0.85
	(pyridin-3-
	ylcarbamoyl)phenyl)methyl)isoxazole-3-
	carboxamide
164	N-(4-((2-	337.1	17.78
	aminoacetamido)methyl)phenyl)-5-	(+Na)
	cyclopropylisoxazole-3-carboxamide
165	N-((1-benzyl-5-methylpyrrolidin-3-	340.2	43.84
	yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
166	N-((4-chlorophenyl)(4-methylmorpholin-	376.2	31.49
	2-yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
167	5-cyclopropyl-N-(1,2-dimethylpiperidin-	263.1	28.85
	3-yl)isoxazole-3-carboxamide
168	N-(1-benzylpiperidin-3-yl)-5-	326.1	26.38
	cyclopropylisoxazole-3-carboxamide
169	5-cyclopropyl-N-((3-(oxetan-3-	425.3	35.06
	ylcarbamoyl)phenyl)(piperidin-4-
	yl)methyl)isoxazole-3-carboxamide
170	N-(4-(2-aminopropan-2-yl)phenyl)-5-	286.88	3.54
	cyclopropylisoxazole-3-carboxamide
171	N-(4-(1-amino-2-((1-methylpiperidin-4-	398.25	24.39
	yl)amino)-2-oxoethyl)phenyl)-5-
	cyclopropylisoxazole-3-caxboxamide
172	5-cyclopropyl-N-((3-((6-methylpyridin-	460.3	5.9
	3-yl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)isoxazole-3-carboxamide
173	5-cyclopropyl-N-((3-(piperidin-3-	452.3	38.93
	ylcarbamoyl)phenyl)(piperidin-4-
	yl)methyl)isoxazole-3-carboxamide
174	N-((3-((5-carbamoylpyridin-3-	489.3	10.82
	yl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
175	5-cyclopropyl-N-(1-phenyl-3-(1H-1,2,4-	338.15	41.58
	triazol-1-yl)propyl)isoxazole-3-
	carboxamide
176	5-cyclopropyl-N-((3-((6-	475.35	3.45
	(methylamino)pyridin-3-
	yl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)isoxazole-3-carboxamide
177	5-cyclopropyl-N-((3-((6-	476.35	4.59
	methoxypyridin-3-
	yl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)isoxazole-3-carboxamide
178	N-(1-(1-(L-alanyl)piperidin-4-yl)ethyl)-	335.25	0.47
	5-cyclopropylisoxazole-3-carboxamide
179	N-((1-(L-alanyl)piperidin-4-yl)methyl)-	321.25	0.75
	5-cyclopropylisoxazole-3-carboxamide
180	N-((1-(D-alanyl)piperidin-4-yl)methyl)-	321.2	9.05
	5-cyclopropylisoxazole-3-carboxamide
181	5-cyclopropyl-N-(piperidin-4-yl(3-	447.35	7.34
	(pyridazin-4-
	ylcarbamoyl)phenyl)methyl)isoxazole-3-
	carboxamide
182	5-cyclopropyl-N-(2-((2-	399.30	14.19
	hydroxybenzyl)amino)-2-oxo-1-
	(pipendin-4-yl)ethyl)isoxazole-3-
	carboxamide
183	5-cyclopropyl-N-(piperidin-4-yl(3-((6-	514.35	8.28
	(trifluoromethyl)pyridin-3-
	yl)carbamoyl)phenyl)methyl)isoxazole-
	3-carboxamide
184	5-cyclopropyl-N-(piperidin-4-yl(3-	447.85	2.16
	(pyrimidin-5-
	ylcarbamoyl)phenyl)methyl)isoxazole-3-
	carboxamide
185	5-cyclopropyl-N-(piperidin-4-yl(3-	447.4	1.7
	(pyridazin-3-
	ylcarbamoyl)phenyl)methyl)isoxazole-3-
	carboxamide
186	5-cyclopropyl-N-((3-((2-hydroxypyridin-	462.35	29.68
	3-yl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)isoxazole-3-carboxamide
187	5-cyclopropyl-N-((3-((5-methylpyridin-	460.35	2.88
	3-yl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)isoxazole-3-carboxarnide
188	N-(1-(1-(D-alanyl)piperidin-4-yl)ethyl)-	335.25	3.69
	5-cyclopropylisoxazole-3-carboxamide
189	N-(1-(1-(L-tryptophyl)piperidin-4-	450.4	0.52
	yl)ethyl)-5-cyclopropylisoxazole-3-
	carboxamide
190	N-(1-(1-(D-tryptophyl)piperidin-4-	450.4	10.09
	yl)ethyl)-5-cyclopropylisoxazole-3-
	carboxamide
191	N-((1-(L-tryptophyl)piperidin-4-	436.35	0.56
	yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
192	N-((1-(D-tryptophyl)piperidin-4-	435.35	6.5
	yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
193	N-((1-(L-seryl)piperidin-4-	413.35	3.51
	yl)(phenyl)methyl)-5-
	cyclopropylisoxazole-3-carboxamide
194	N-((1-(L-tyrosyl)piperidin-4-	489.5	2.69
	yl)(phenyl)methyl)-5-
	cyclopropylisoxazole-3-caxboxamide
195	N-((1-(L-tryptophyl)piperidin-4-	512.29	1.42
	yl)(phenyl)methyl)-5-
	cyclopropylisoxazole-3-carboxamide
196	N-((1-(L-seryl)piperidin-4-yl)methyl)-5-	337.25	3.28
	cyclopropylisoxazole-3-carboxamide
197	N-((1-(L-tyrosyl)piperidin-4-yl)methyl)-	413.35	0.43
	5-cyclopropylisoxazole-3-carboxamide
198	(±)-trans-5-cyclopropyl-N-(4-(4-	319.2	17.68
	fluorophenyl)-4-hydroxybutan-2-
	yl)isoxazole-3-carboxamide
199	ethyl 1-(L-tyrosyl)-5-(5-	471.4	43.3
	cyclopropylisoxazole-3-
	carboxamido)piperidine-3-carboxylate
200	N-((3-((6-acetamidopyridin-3-	503.45	4.57
	yl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
201	5-cyclopropyl-N-(piperidin-4-yl(3-	447.3	18.97
	(pyrazin-2-
	ylcarbamoyl)phenyl)methyl)isoxazole-3-
	carboxamide
202	5-cyclopropyl-N-((3-((6-hydroxypyridin-	462.35	49.68
	3-yl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)isoxazole-3-carboxamide
203	methyl 2-(1-(L-alanyl)piperidin-4-yl)-2-	379.3	0.74
	(5-cyclopropylisoxazole-3-
	carboxamido)acetate
204	methyl 2-(1-(D-alanyl)piperidin-4-yl)-2-	379.3	7.54
	(5-cyclopropylisoxazole-3-
	carboxamido)acetate
205	N-((1-(L-alanyl)piperidin-4-yl)(3-	517.35	0.29
	(pyridin-3-ylcarbamoyl)phenyl)methyl)-
	5-cyclopropylisoxazole-3-carboxamide
206	N-((1-(D-alanyl)piperidin-4-yl)(3-	517.45	0.59
	(pyridin-3-ylcarbamoyl)phenyl)methyl)-
	5-cyclopropylisoxazole-3-carboxamide
207	N-((1-(D-tryptophyl)piperidin-4-	534.5	23.23
	yl)(phenyl)methyl)-5-	(+Na)
	cyclopropylisoxazole-3-carboxamide
208	N-(1-(1-(L-valyl)piperidin-4-yl)ethyl)-5-	363.35	0.36
	cyclopropylisoxazole-3-carboxamide
209	N-(1-(1-(D-valyl)piperidin-4-yl)ethyl)-5-	363.35	2.42
	cyclopropylisoxazole-3-caxboxamide
210	N-(1-(1-(L-seryl)piperidin-4-yl)ethyl)-5-	373.3	1.2
	cyclopropylisoxazole-3-carboxamide	(+Na)
211	N-(1-(1-(L-tyrosyl)piperidin-4-yl)ethyl)-	427.35	0.2
	5-cyclopropylisoxazole-3-carboxamide
212	tert-butyl4-(1-(5-cyclopropylisoxazole-	386.25	28.43
	3-carboxamido)ethyl)piperidine-1-	(+Na)
	carboxylate
213	5-cyclopropyl-N-(1-(piperidin-4-	264.2	7.12
	yl)ethyl)isoxazole-3-carboxamide
214	5-cyclopropyl-N-(piperidin-4-yl(pyridin-	327.25	3.15
	4-yl)methyl)isoxazole-3-carboxamide
215	N-((S)-(1-(L-alanyl)piperidin-4-	397.35	0.21
	yl)(phenyl)methyl)-5-
	cyclopropylisoxazole-3-carboxamide
216	N-((R)-(1-(L-alanyl)piperidin-4-	397.35	4.48
	yl)(phenyl)methyl)-5-
	cyclopropylisoxazole-3-carboxamide
218	5-cyclopropyl-N-(2-oxo-1-(piperidin-4-	370.3	26.87
	yl)-2-(pyridin-3-
	ylamino)ethyl)isoxazole-3-carboxamide
219	5-cyclopropyl-N-(2-oxo-1-(piperidin-4-	384.3	34.17
	yl)-2-((pyridin-3-
	ylmethyl)amino)ethyl)isoxazole-3-
	carboxamide
220	5-cyclopropyl-N-(piperidin-4-yl(3-	432.35	2.22
	((pyridin-3-
	ylamino)methyl)phenyl)methyl)isoxazole-
	3-carboxamide
221	N-((3-((6-aminopyridin-3-	461.4	7.49
	yl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
222	5-cyclopropyl-N-((3-(methyl(pyridin-3-	460.4	31.99
	yl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)isoxazole-3-carboxamide
223	methyl 2-(1-(L-tryptophyl)piperidin-4-	494.18	3.15
	yl)-2-(5-cyclopropylisoxazole-3-
	carboxamido)acetate
224	methyl 2-(1-(D-tiyptophyl)piperidin-4-	494.23	29.42
	yl)-2-(5-cyclopropylisoxazole-3-
	carboxamido)acetate
225	N-(1-(1-(D-seryl)piperidin-4-yl)ethyl)-5-	351.3	5.82
	cyclopropylisoxazole-3-carboxamide
226	N-((1-(L-valyl)piperidin-4-yl)methyl)-5-	349.3	0.57
	cyclopropylisoxazole-3-carboxamide
227	N-((1-(D-valyl)piperidin-4-yl)methyl)-5-	349.25	4.01
	cyclopropylisoxazole-3-carboxamide
228	N-((1-(D-seryl)piperidin-4-yl)methyl)-5-	337.25	13.18
	cyclopropylisoxazole-3-carboxamide
229	5-cyclopropyl-N-((3-((1-methyl-1H-	449.4	5.5
	pyrazol-4-
	yl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)isoxazole-3-carboxamide
230	N-(1-(1-(D-alanyl)piperidin-4-	349.3	1.93
	yl)propyl)-5-cyclopropylisoxazole-3-
	carboxamide
231	N-(1-(1-(L-alanyl)piperidin-4-yl)propyl)-	349.25	0.9
	5-cyclopropylisoxazole-3-carboxamide
232	5-cyclopropyl-N-(2-oxo-1-(piperidin-4-	370.2	6.36
	yl)-2-(pyridin-2-
	ylamino)ethyl)isoxazole-3-carboxamide
233	N-((3-((4-aminopyridin-2-	461.3	5.1
	yl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
234	N-((3-((6-cyanopyridin-3-	471.4	5.42
	yl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
235	N-(1-(1-(D-tyrosyl)piperidin-4-yl)ethyl)-	427.3	6.5
	5-cyclopropylisoxazole-3-carboxamide
236	N-((1-(D-tyrosyl)piperidin-4-yl)methyl)-	413.25	14.3
	5-cyclopropylisoxazole-3-carboxamide
237	5-cyclopropyl-N-(1-(1-((S)-2-	336.2	25.65
	hydroxypropanoyl)piperidin-4-
	yl)ethyl)isoxazole-3-carboxamide
238	(R)-N-(3-(3-aminobutanamido)-2,2-	323.1	4.43
	dimethylpropyl)-5-cyclopropylisoxazole-
	3-carboxamide
239	(S)-N-(3-(3-aminobutanamido)-2,2-	323.1	6.35
	dimethylpropyl)-5-cyclopropylisoxazole-
	3-carboxamide
240	N-(3-(3-aminopropanamido)-2,2-	309.1	12.72
	dimethylpropyl)-5-cyclopropylisoxazole-
	3-carboxamide
241	N-(1-(1-(L-alanyl)piperidin-4-yl)-2-oxo-	455.3	15.58
	2-((pyridin-3-ylmethyl)amino)ethyl)-5-
	cyciopropylisoxazole-3-carboxamide
242	N-(1-(1-(L-alanyl)piperidin-4-yl)-2-oxo-	455.25	22.31
	2-((pyridin-4-ylmethyl)amino)ethyl)-5-
	cyclopropylisoxazole-3-caxboxamide
243	N-(1-(1-(L-alanyl)piperidin-4-yl)-2-((2-	470.35	2.72
	hydroxybenzyl)amino)-2-oxoethyl)-5-
	cyclopropylisoxazole-3-caxboxamide
244	ethyl 2-(5-cyclopropylisoxazole-3-	322.2	20.57
	carboxamido)-2-(piperidin-4-yl)acetate
245	N-((3-((2-aminopyridin-4-	461.3	4.13
	yl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)-5-cyclopropylisoxazoIe-3-
	carboxamide
246	5-cyclopropyl-N-((3-((6-	489.4	5.95
	(dimethylamino)pyridin-3-
	yl)carbamoyl)phenyl)(piperidin-4-
	yl)methyl)isoxazole-3-carboxamide
247	N-(1-(1-((R)-3-aminobutanoyl)piperidin-	349.25	0.62
	4-yl)ethyl)-5-cyclopropylisoxazole-3-
	carboxamide
248	N-(1-(1-((S)-3-aminobutanoyl)piperidin-	349.25	1.47
	4-yl)ethyl)-5-cyclopropylisoxazole-3-
	carboxamide
249	(S)-N-(4-(2-aminopropanamido)butyl)-5-	295.15	14.62
	cyclopropylisoxazole-3-caxboxamide
250	(R)-N-(4-(2-aminopropanamido)butyl)-	295.15	36.02
	5-cyclopropylisoxazole-3-carboxamide
251	N-(((S)-1-(D-alanyl)pyrrolidin-3-	307.15	30.73
	yl)methyl)-5-cyclopropylisoxazole-3-
	caxboxamide
252	N-(((S)-1-(L-alanyl)pyrrolidin-3-	307.05	21.36
	yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
253	N-(((R)-1-(D-alanyl)pyrrolidin-3-	307.15	32.34
	yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
254	N-(4-aminobutyl)-5-	224.1	41.44
	cyclopropylisoxazole-3-carboxamide
255	(R)-5-cyclopropyl-N-(pyrrolidin-3-	236.1	39.25
	ylmethyl)isoxazole-3-carboxamide
256	(S)-5-cyclopropyl-N-(pyrrolidin-3-	236.1	37.48
	ylmethyl)isoxazole-3-carboxamide
257	5-cyclopropyl-N-((3-	446.35	7.37
	(nicotmamido)phenyl)(piperidin-4-
	yl)methyl)isoxazole-3-carboxamide
258	N-(1-(1-(L-alanyl)piperidin-4-yl)-2-oxo-	441.3	11.47
	2-(pyridin-3-ylamino)ethyl)-5-
	cyclopropylisoxazole-3-carboxamide
259	N-(1-(1-(L-alanyl)piperidin-4-yl)-2-oxo-	455.3	11.04
	2-((pyridin-2-ylmethyl)amino)ethyl)-5-
	cyclopropylisoxazole-3-carboxamide
260	N-(((R)-1-(L-alanyl)pyrrolidin-3-	307.15	15.5
	yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
261	N-(1-(1-(L-alanyl)piperidin-4-yl)-2-oxo-	441.3	0.39
	2-(pyridin-2-ylamino)ethyl)-5-
	cyclopropylisoxazole-3-carboxamide
262	N-(1-(1-(L-alanyl)piperidin-4-yl)-2-oxo-	441.35	8.5
	2-(pyridin-4-ylamino)ethyl)-5-
	cyclopropylisoxazole-3-carboxamide
263	5-cyclopropyl-N-((4-hydroxypiperidin-4-	266.15	14.89
	yl)methyl)isoxazole-3-carboxamide
264	ethyl 4-((5-cyclopropylisoxazole-3-	322.1	43.56
	carboxamido)methyl)piperidine-4-
	carboxylate
265	5-cyclopropyl-N-((4-methylpiperidin-4-	264.15	41.74
	yl)methyl)isoxazole-3-carboxamide
266	5-cyclopropyl-N-((-fluoropiperidin-4-	268.05	18.82
	yl)methyl)isoxazole-3-carboxamide
267	N-((1-(L-alanyl)-4-hydroxypiperidin-4-	337.35	5.47
	yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
268	ethyl 1-(L-alanyl)-4-((5-	393.15	3.22
	cyclopropylisoxazole-3-
	carboxamido)methyl)piperidine-4-
	carboxylate
269	N-((1-(L-alanyl)-4-methylpiperidin-4-	335.15	1.67
	yl)methyl)-5-cyclopropylisoxazole-3-
	carboxamide
270	N-((1-(L-alanyl)-4-fluoropiperidin-4-	339.15	4.15
	yl)methyl)-5-cyclopropylisoxazoIe-3-
	carboxamide
271	N-(1-(1-(L-alanyl)piperidin-4-yl)-2-	351.3	2.23
	hydroxyethyl)-5-cyclopropylisoxazole-3-
	carboxamide
272	ethyl 2-(1-(L-tyrosyl)piperidin-4-yl)-2-	485.3	7.39
	(5-cyclopropylisoxazole-3-
	carboxamido)acetate
273	N-(1-(1-(L-tyrosyl)piperidin-4-yl)-2-	465.25	2.37
	hydroxyethyl)-5-cyclopropylisoxazole-3-	(+Na)
	carboxamide
274	5-cyclopropyl-N-(2-hydroxy-1-	280.1	5.93
	(piperidin-4-yl)ethyl)isoxazole-3-
	carboxamide
275	N-(6-(3-	333.2	1.8
	aminopropanamido)spiro[3.3]heptan-2-
	yl)-5-cyclopropylisoxazole-3-
	carboxamide[transisomer
276	5-cyclopropyl-N-(2-methoxy-1-	294.1	11.92
	(piperidin-4-yl)ethyl)isoxazole-3-
	carboxamide
277	5-cyclopropyl-N-(2-phenoxy-1-	356.1	10.51
	(piperidin-4-yl)ethyl)isoxazole-3-
	carboxamide
278	5-cyclopropyl-N-(2-isopropoxy-1-	322.2	15.25
	(piperidin-4-yl)ethyl)isoxazole-3-
	carboxamide
279	N-(6-((R)-3-	347.5	1.25
	aminobutanamido)spiro[3.3]heptan-2-
	yl)-5-cyclopropylisoxazole-3-
	carboxamide[transisomer
280	N-((1r,4r)-4-aminocyclohexyl)-5-	224.2	18.75
	methylisoxazole-3-caxboxamide
281	N-(6-((R)-3-	347.1	5.6
	aminobutanamido)spiro[3.3]heptan-2-
	yl)-5-cyclopropylisoxazole-3-
	carboxamide[cisisomer
282	N-(1-(1-(L-alanyl)piperidin-4-yl)-2-	387	2.08
	methoxyethyl)-5-cyclopropylisoxazole-	(+Na)
	3-carboxamide
283	N-(1-(1-(L-alanyl)piperidin-4-yl)-2-	427.35	2.67
	phenoxyethyl)-5-cyclopropylisoxazole-3
	carboxamide
284	N-(1-(1-(L-alajiyl)piperidin-4-yl)-2-	393.35	1.19
	isopropoxyethyl)-5-
	cyclopropylisoxazole-3-carboxamide
285	N-(1-(1-(L-tyrosyl)piperidin-4-yl)-2-	457.25	1.07
	methoxyethyl)-5-cyclopropylisoxazole-
	3-carboxamide
286	N-(1-(1-(L-tyrosyl)piperidin-4-yl)-2-	519.3	4.35
	phenoxyethyl)-5-cyclopropylisoxazole-3
	carboxamide
287	N-(1-(1-(L-tyrosyl)piperidin-4-yl)-2-	485.3	5.2
	isopropoxyethyl)-5-
	cyclopropylisoxazole-3-carboxamide
288	N-(6-((S)-3-	347.58	3.94
	aminobutanamido)spiro[3,3]heptan-2-
	yl)-5-cyclopropylisoxazole-3-
	carboxamide[transisomer
290	N-(6-((S)-3-	347.6	1.82
	aminobutanamido)spiro[3.3]heptan-2-
	yl)-5-cyclopropylisoxazole-3-
	carboxamide[cisisomer
291	N-(1-(3-aminopropanoyl)piperidin-3-yl)-	307	25.86
	5-cyclopropylisoxazole-3-carboxamide
292	5-cyclopropyl-N-((1r,4r)-4-((2-((2-	365.1	4.88
	hydroxyethyl)amino)ethyl)carbamoyl)-
	cyclohexyl)isoxazole-3-carboxamide
293	N-(6-((R)-3-	375.4	0.56
	aminobutanamido)bicyclo[3.3.1]nonan-
	2-yl)-5-cyclopropylisoxazole-3-
	carboxamide
294	N-(6-((S)-3-	375.3	0.66
	aminobutanamido)bicyclo[3.3.1]nonan-
	2-yl)-5-cyclopropylisoxazole-3-
	carboxamide
295	N-(6-(3-	361.4	1.2
	aminopropanamido)bicyclo[3.3.1Jnonan-
	2-yl)-5-cyclopropylisoxazole-3-
	carboxamide
296	5-cyclopropyl-N-((1-oxo-2-(pyridin-3-	472.63	36.37
	yl)-1,2,3,4-tetrahydroisoquinolin-5-
	yl)(piperidin-4-yl)methyl)isoxazole-3-
	carboxamide
297	N-(1-(4-aminobutanoyl)piperidin-3-yl)-	321.05	18.59
	5-cyclopropylisoxazole-3-carboxamide
298	N-(1-(1-(3-aminopropanoyl)piperidin-3-	335.1	37.71
	yl)ethyl)-5-cyclopropylisoxazole-3-
	carboxamide
299	5-cyclopropyl-N-(1-(1-glycylpiperidin-3-	321.1	21.81
	yl)ethyl)isoxazole-3-carboxamide
300	5-cyclopropyl-N-(1-(piperidin-4-	292.1	8.7
	yl)butyl)isoxazole-3-carboxamide
301	5-cyclopropyl-N-(2-phenyl-1-(piperidin-	340.1	36.88
	4-yl)ethyl)isoxazole-3-carboxamide
302	N-(1-(((1r,4r)-4-(2-	378.1	27.66
	aminoacetamido)cyclohexyl)amino)-1-
	oxopropan-2-yl)-5-cyclopropylisoxazole-
	3-carboxamide
303	5-cyclopropyl-N-(1-glycylpiperidin-3-	293.1	32.81
	yl)isoxazole-3-carboxamide
304	N-(1-(1-(4-aminobutanoyl)piperidin-3-	349.1	21.81
	yl)ethyl)-5-cyclopropylisoxazole-3-
	carboxamide
305	5-cyclopropyl-N-(3-methyl-1-(piperidin-	306.15	9.24
	4-yl)butyl)isoxazole-3-carboxamide
306	N-(3-(3-aminopropanamido)-2-	295.1	41.9
	methylpropyl)-5-cyclopropylisoxazole-3-
	carboxamide
307	N-(1-(3-aminopropanamido)pentan-3-	309.1	21.73
	yl)-5-cyclopropylisoxazole-3-
	carboxamide
308	N-(4-(3-aminopropanamido)-2-	309.1	22.05
	methylbutan-2-yl)-5-
	cyclopropylisoxazole-3-carboxamide
309	(1r,4r)-4-(5-cyclopropylisoxazole-3-	322.1	0.71
	carboxamido)cyclohexyl3-
	aminopropanoate
310	N-(3-(4-aminobutanamido)cyclohexyl)-	335.1	27.03
	5-cyclopropylisoxazole-3-carboxamide
311	(R)-N-((1-((3-	335.05	10.15
	aminobutanamido)methyl)cyclobutyl)
	methyl)-5-cyclopropylisoxazole-3-
	carboxamide
312	N-((1r,4r)-4-((3-	335.1	2.75
	aminopropyl)carbamoyl)cyclohexyl)-5-
	cyclopropylisoxazole-3-carboxamide
313	N-(4-((R)-3-aminobutanamido)-3,3-	337.1	0.8
	dimethylbutan-2-yl)-5-
	cyclopropylisoxazole-3-carboxamide
314	N-(4-(3-aminopropanamido)butan-2-yl)-	295.05	27.98
	5-cyclopropylisoxazole-3-carboxamide
315	N-(3-(3-aminopropanamido)cyclohexyl)-	321.1	20.78
	5-cyclopropylisoxazole-3-carboxamide
316	N-((1r,4r)-4-(3-	295.1	8.58
	aminopropanamido)cyclohexyl)-5-
	methylisoxazole-3-caxboxamide
317	N-((1r,4r)-4-((2-	321.1	3.67
	aminoethyl)carbamoyl)cyclohexyl)-5-
	cyclopropylisoxazole-3-carboxamide
318	N-(4-((S)-3-aminobutanamido)-3,3-	337.1	2.03
	dimethylbutan-2-yl)-5-
	cyclopropylisoxazole-3-carboxamide
319	N-(1-((1r,4r)-4-aminocyclohexane-1-	335.1	1.83
	carboxamido)propan-2-yl)-5-
	cyclopropylisoxazole-3-carboxamide
320	N-(1-(4-aminobutanamido)propan-2-yl)-	295.1	12.94
	5-cyclopropylisoxazole-3-carboxamide
321	5 -cyclopropyl-N-(1-(piperidin-3 -	264	26.78
	yl)ethyl)isoxazole-3-carboxamide
322	N-(1-(4-aminobutanamido)butan-2-yl)-5-	309.1	17.38
	cyclopropylisoxazole-3-carboxamide
323	N-(1-((1r,4r)-4-aminocyclohexane-1-	349.1	1.3
	carboxamido)butan-2-yl)-5-
	cyclopropylisoxazole-3-carboxamide
324	N-(1-(3-aminopropanamido)butan-2-yl)-	295.1	19.68
	5-cyclopropylisoxazole-3-carboxamide
325	N-(4-(3-aminopropanamido)phenyl)-5-	315	1.06
	cyclopropylisoxazole-3-carboxamide
326	N-(4-(2-aminoacetamido)phenyl)-5-	301.3	4.24
	cyclopropylisoxazole-3-carboxamide
327	N-(4-(4-aminobutanamido)phenyl)-5-	329.05	1.19
	cyclopropylisoxazole-3-carboxamide
328	N-(4-((3-aminopropyl)amino)phenyl)-5-	301.05	3.74
	cyclopropylisoxazole-3-carboxamide
329	N-(4-((2-aminoethyl)amino)phenyl)-5-	287.05	4.63
	cyclopropylisoxazole-3-carboxamide
330	N-((1-((3-	307.1	37.55
	aminopropanamido)methyl)cyclopropyl)
	methyl)-5-cyclopropylisoxazole-3-
	carboxamide
331	N-(4-(3-aminopropanamido)-1-	311.1	13.31
	hydroxybutan-2-yl)-5-
	cyclopropylisoxazole-3-carboxamide
332	5-cyclopropyl-N-(4-(piperidin-4-	355.1	1.37
	ylcarbamoyl)phenyl)isoxazole-3-
	carboxamide
333	N-(4-(((1s,4s)-4-	369.1	8.34
	aminocyclohexyl)carbamoyl)phenyl)-5-
	cyclopropylisoxazole-3-carboxamide
334	N-(4-(((1r,4r)-4-	369.10	3.83
	aminocyclohexyl)carbamoyl)phenyl)-5-
	cyclopropylisoxazole-3-carboxamide
335	N-(3-(N-(2-	351	10
	aminoethyl)sulfamoyl)phenyl)-5-
	cyclopropylisoxazole-3-carboxamide
336	N-(4-(N-(3-	365.10	5.89
	aminopropyl)sulfamoyl)phenyl)-5-
	cyclopropylisoxazole-3-carboxamide
337	N-(3-((2-aminoethyl)carbamoyl)phenyl)-	315	>10
	5-cyclopropylisoxazole-3-carboxamide
338	N-(3-(N-(3-	365.1	>10
	aminopropyl)sulfamoyl)phenyl)-5-
	cyclopropylisoxazole-3-carboxamide
339	N-(4-(N-(2-	351.1	7.68
	aminoethyl)sulfamoyl)phenyl)-5-
	cyclopropylisoxazole-3-carboxamide
340	(R)-N-(1-(1-(4-aminobutanoyl)piperidin-	349.15	1.29
	4-yl)ethyl)-5-cyclopropylisoxazole-3-
	carboxamide
341	(S)-N-(1-(1-(4-aminobutanoyl)piperidin-	349.15	3.54
	4-yl)ethyl)-5-cyclopropylisoxazole-3-
	carboxamide
342	N-(1-((R)-3-aminobutanamido)-2,2-	351.2	1.31
	dimethylpentan-3-yl)-5-
	cyclopropylisoxazole-3-carboxamide
343	N-(1-((3-aminopropyl)sulfonyl)azetidin-	329	>10	>40
	3-yl)-5-cyclopropylisoxazole-3-
	carboxamide
344	(R)-N-(1-(1-((3-	385	5.03	23.42
	aminopropyl)sulfonyl)piperidin-4-
	yl)ethyl)-5-cyclopropylisoxazole-3-
	carboxamide
345	(S)-N-(1-(1-((3-	385	>10	>40
	aminopropyl)sulfonyl)piperidin-4-
	yl)ethyl)-5-cyclopropylisoxazole-3-
	carboxamide
346	(S)-5-cyclopropyl-N-(1-(1-(2-(piperidin-	389.1	>10
	4-yl)acetyl)piperidin-4-
	yl)ethyl)isoxazole-3-carboxamide
347	(R)-5-cyclopropyl-N-(1-(1-(2-(piperidin-	389.2	2.6
	4-yl)acetyl)piperidin-4-
	yl)ethyl)isoxazole-3-carboxamide
348	N-((R)-1-(1-((1r,4R)-4-	389.2	0.46	5.16
	aminocyclohexane-1-carbonyl)piperidin-
	4-yl)ethyl)-5-cyclopropylisoxazole-3-
	carboxamide
349	N-((S)-1-(1-((1r,4S)-4-	389.2	2.79	>40
	aminocyclohexane-1-carbonyl)piperidin-
	4-yl)ethyl)-5-cyclopropylisoxazole-3-
	carboxamide
350	N-(1-((1r,4r)-4-aminocyclohexane-1-	333	>10	>40
	carbonyl)azetidin-3-yl)-5-
	cyclopropylisoxazole-3-carboxamide
351	N-(3-((3-	329.10	>10	>40
	aminopropyl)carbamoyl)phenyl)-5-
	cyclopropylisoxazole-3-carboxamide
352	N-(1-(4-aminobutanoyl)azetidin-3-yl)-5-	293.05	>10	>40
	cyclopropylisoxazole-3-carboxamide
353	N-(3-bromo-4-(piperidin-4-	433.1/	1.44
	ylcarbamoyl)phenyl)-5-	(433)
	cyclopropylisoxazole-3-carboxamide
354	5-cyclopropyl-N-(2-methyl-4-(piperidin-	369.2	2.17
	4-ylcarbamoyl)phenyl)isoxazole-3-
	carboxamide
355	N-(4-((3-aminopropyl)carbamoyl)-3-	407.05/	1.77
	bromophenyl)-5-cyclopropylisoxazole-3-	(409)
	carboxamide
356	N-(4-((3-aminopropyl)carbamoyl)-2-	343.10	3.52
	methylphenyl)-5-cyclopropylisoxazole-
	3-carboxamide	447.1/	7.25
357	N-(3-bromo-4-((piperidin-4-	(449)
	ylmethyl)carbamoyl)phenyl)-5-
	cyclopropylisoxazole-3-carboxamide
358	N-(4-((3-aminocyclobutyl)carbamoyl)-3-	419/	1.4
	bromophenyl)-5-cyclopropylisoxazole-3-	(421.05)
	carboxamide
359	5-cyclopropyl-N-(4-(N-(piperidin-4-	405	5.81	>40
	ylmethyl)sulfamoyl)phenyl)isoxazole-3-
	carboxamide
360	5-cyclopropyl-N-(3-methyl-4-(piperidin-	369.15	1.41
	4-ylcarbamoyl)phenyl)isoxazole-3-
	carboxamide
361	N-(2-bromo-4-(piperidin-4-	433	1.77	>40
	ylcarbamoyl)phenyl)-5-	(435)
	cyclopropylisoxazole-3-carboxamide
362	N-(4-((4-aminocyclohcxyl)carbamoyl)-3-	383.4	3.74
	methylphenyl)-5-cyclopropylisoxazole-
	3-carboxamide
363	N-(4-((4-aminocyclohcxyl)carbamoyl)-2-	447/	5.59	>40
	bromophenyl)-5-cyclopropylisoxazole-3-	(449.0)
	carboxamide
364	N-(4-((2-aminoethyl)carbamoyl)-3-	329.1	6
	methylphenyl)-5-cyclopropylisoxazole-
	3-carboxamide
365	N-(4-((2-aminoethyl)carbamoyl)-3-	393.05/	4.5	>40
	bromophenyl)-5-cyclopropylisoxazole-3-	(395)
	carboxamide
366	N-(4-((2-aminoethyl)carbamoyl)-2-	393/	3.7	38.81
	bromophenyl)-5-cyclopropylisoxazole-3-	(395.1)
	carboxamide
367	N-(4-((3-aminopropyl)carbamoyl)-3-	343.1	5.23
	methylphenyl)-5-cyclopropylisoxazole-
	3-carboxamide
368	N-(3-bromo-4-(pyrrolidin-3-	419.1/	3.06	>40
	ylcarbamoyl)phenyl)-5-	(421)
	cyclopropylisoxazole-3-carboxamide
369	5-cyclopropyl-N-(2-methyl-4-	383.1	8.43
	((piperidin-4-
	ylmethyl)carbamoyl)phenyl)isoxazole-3-
	carboxamide
370	N-(4-((3-aminocyclobutyl)carbamoyl)-2-	419.1/	2.74	>40
	bromophenyl)-5-cyclopropylisoxazole-3-	(421)
	carboxamide
371	N-(4-((3-aminocyclohexyl)carbamoyl)-3-	447/
	bromophenyl)-5-cyclopropylisoxazole-3-	(449.15)	9.11
	carboxamide
372	N-(4-(N-(4-	405	2.57	21.71
	aminocyclohexyl)sulfamoyl)phenyl)-5-
	cyclopropylisoxazole-3-carboxamide
373	5-cyclopropyl-N-(4-(N-(piperidin-4-	391	6.04	39.07
	yl)sulfamoyl)phenyl)isoxazole-3-
	carboxamide
374	5-cyclopropyl-N-(4-(N-(pyrrolidin-3-	377.2	4.03	>40
	yl)sulfamoyl)phenyl)isoxazole-3-
	carboxamide
375	N-(4-(N-(3-	377	4.72	>40
	aminocyclobutyl)sulfamoyl)phenyl)-5-
	cyclopropylisoxazole-3-carboxamide
376	N-(1-((S)-3-aminobutanamido)-2,2-	351.1	1.17
	dimethylpentan-3-yl)-5-
	cyclopropylisoxazole-3-carboxamide
377	N-(4-((4-aminocyclohexyl)carbamoyl)-3-	447.3/	2.81
	bromophenyl)-5-cyclopropylisoxazole-3-	(449)
	carboxamide
378	N-(4-((4-aminocyclohexyl)carbamoyl)-2-	383.3	6.36
	methylphenyl)-5-cyclopropylisoxazole-
	3-carboxamide
379	N-(4-((2-aminoethyl)carbamoyl)-2-	329	2.76
	methylphenyl)-5-cyclopropylisoxazole-
	3-carboxamide
380	N-(4-((3-aminopropyl)carbamoyl)-2-	406.9	1.74
	bromophenyl)-5-cyclopropylisoxazole-3-	(409)
	carboxamide
381	5-cyclopropyl-N-(2-methyl-4-	355	2
	(pyrrolidin-3-
	ylcarbamoyl)phenyl)isoxazole-3-
	carboxamide
382	N-(2-bromo-4-(pyrrolidin-3-	419/	2.95
	ylcarbamoyl)phenyl)-5-	(420.9)
	cyclopropylisoxazole-3-carboxamide
383	N-(4-((3-aminocyclopentyl)carbamoyl)-	433.1/	3.23
	3-bromophenyl)-5-cyclopropylisoxazole-	(435)
	3-carboxamide
384	N-(4-((3-aminocyclopentyl)carbamoyl)-	369.15	5.54
	2-methylphenyl)-5-
	cyclopropylisoxazole-3-carboxamide
385	N-(4-((3-aminocyclopentyl)carbamoyl)-	433.15/	3.29
	2-bromophenyl)-5-cyclopropylisoxazole-	(435)
	3-carboxamide
386	N-(4-((3-aminocyclohexyl)carbamoyl)-2-	383.1	8.02
	methylphenyl)-5-cyclopropylisoxazole-
	3-carboxamide
387	N-(4-((3-aminocyclohexyl)carbamoyl)-2-	447/	5.37
	bromophenyl)-5-cyclopropylisoxazole-3-	(449.0)
	carboxamide
388	N-(4-(N-(3-	391	5.11	>40
	aminocyclopentyl)sulfamoyl)phenyl)-5-
	cyclopropylisoxazole-3-carboxamide
389	N-(4-(N-(3-	405.15	3.79	38.09
	aminocyclohexyl)sulfamoyl)phenyl)-5-
	cyclopropylisoxazole-3-carboxamide
390	5-cyclopropyl-N-(3-methyl-4-	355.1	4.45
	(pyrrolidin-3-
	ylcarbamoyl)phenyl)isoxazole-3-
	carboxamide
391	5-cyclopropyl-N-(3-methyl-4-	383.1	>10
	((piperidin-4-
	ylmethyl)carbamoyl)phenyl)isoxazole-3-
	carboxamide
392	N-(2-bromo-4-((piperidin-4-	447/	4.78
	ylmethyl)carbamoyl)phenyl)-5-	(449.0)
	cyclopropylisoxazole-3-carboxamide
393	N-(4-((3-aminocyclohexyl)carbamoyl)-3-	383.1	>10
	methylphenyl)-5-cyclopropylisoxazole-
	3-carboxamide
394	N-((1s,4s)-4-(N-(2-	357	2.12
	aminocthyl)sulfamoyl)cyclohexyl)-5-
	cyclopropylisoxazole-3-carboxamide
395	N-(4-((3-aminocyclopentyl)carbamoyl)-	369	4.61
	3-methylphenyl)-5-
	cyclopropylisoxazole-3-carboxamide
396	N-(4-((3-aminocyclobutyl)carbamoyl)-2-	355.2	3.29
	methylphenyl)-5-cyclopropylisoxazole-
	3-carboxamide
397	N-(3-((3-aminopropyl)sulfonamido)-2,2-	359.1	2.16
	dimethylpropyl)-5-cyclopropylisoxazole-
	3-carboxamide
398	5-cyclopropyl-N-(2,2-dimethyl-3-	385.15	1.74
	(piperidine-4-
	sulfonamido)propyl)isoxazole-3-
	carboxamide
399	N-(4-((3-aminocyclobutyl)carbamoyl)-3-	355	4.56
	methylphenyl)-5-cyclopropylisoxazole-
	3-carboxamide
*IC50 values are an averagoe of n = 1 to n = 50

Definitions

For the purpose of the present disclosure, the term “alkyl” as used by itself or as part of another group refers to a straight- or branched-chain aliphatic hydrocarbon containing one to twelve carbon atoms (i.e., C_1-12 alkyl) or the number of carbon atoms designated (i.e., a C₁ alkyl such as methyl, a C₂ alkyl such as ethyl, a C₃ alkyl such as propyl or isopropyl, etc.). In one embodiment, the alkyl group is chosen from a straight chain C_1-10 alkyl group. In another embodiment, the alkyl group is chosen from a branched chain C_3-10 alkyl group. In another embodiment, the alkyl group is chosen from a straight chain C_1-6 alkyl group. In another embodiment, the alkyl group is chosen from a branched chain C_3-6 alkyl group. In another embodiment, the alkyl group is chosen from a straight chain C_1-4 alkyl group. In another embodiment, the alkyl group is chosen from a branched chain C_3-4 alkyl group. In another embodiment, the alkyl group is chosen from a straight or branched chain C_3-4 alkyl group. In another embodiment, the alkyl group is partially or completely deuterated, i.e., one or more hydrogen atoms of the alkyl group are replaced with deuterium atoms. Non-limiting exemplary C_1-10 alkyl groups include methyl (including —CD₃), ethyl, propyl, isopropyl, butyl, sec-butyl, tert-butyl, iso-butyl, 3-pentyl, hexyl, heptyl, octyl, nonyl, and decyl. Non-limiting exemplary C_1-4 alkyl groups include methyl, ethyl, propyl, isopropyl, butyl, sec-butyl, tert-butyl, and iso-butyl. Non-limiting exemplary C_1-4 groups include methyl, ethyl, propyl, isopropyl, and tert-butyl.

For the purpose of the present disclosure, the term “optionally substituted alkyl” as used by itself or as part of another group means that the alkyl as defined above is either unsubstituted or substituted with one, two, or three substituents independently chosen from nitro, haloalkoxy, aryloxy, aralkyloxy, alkylthio, sulfonamido, alkylcarbonyl, arylcarbonyl, alkylsulfonyl, arylsulfonyl, ureido, guanidino, carboxy, alkoxycarbonyl, and carboxyalkyl. In one embodiment, the alkyl is a C_1-6 alkyl. In another embodiment, the alkyl is a C_1-4 alkyl. In one embodiment, the optionally substituted alkyl is substituted with two substituents. In another embodiment, the optionally substituted alkyl is substituted with one substituent. Non-limiting exemplary optionally substituted alkyl groups include —CH₂CH₂NO₂, —CH₂CH₂CO₂H, —CH₂CH₂SO₂CH₃, —CH₂CH₂COPh, and —CH₂C₆H₁₁.

For the purpose of the present disclosure, the term “alkylenyl” as used herein by itself or part of another group refers to a divalent form of an alkyl group as defined above. In one embodiment, the alkylenyl is a divalent form of a C_1-6 alkyl. In one embodiment, the alkylenyl is a divalent form of a C_1-4 alkyl. Non-limiting exemplary alkylenyl groups include —CH₂CH₂—, —CH₂CH₂CH₂—, —CH₂CH(CH₃)CH₂—, and —CH₂C(CH₃)₂CH₂—.

For the purpose of the present disclosure, the term “cycloalkyl” as used by itself or as part of another group refers to saturated and partially unsaturated (containing one or two double bonds) cyclic aliphatic hydrocarbons containing one to three rings having from three to twelve carbon atoms (i.e., C_3-12 cycloalkyl) or the number of carbons designated. In one embodiment, the cycloalkyl group has two rings. In one embodiment, the cycloalkyl group has one ring. In another embodiment, the cycloalkyl group is chosen from a C_3-8 cycloalkyl group. In another embodiment, the cycloalkyl group is chosen from a C_3-6 cycloalkyl group. Non-limiting exemplary cycloalkyl groups include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, norbornyl, decalin, adamantyl, cyclohexenyl, spiro[3.3]heptane, and bicyclo[3.3.1]nonane.

For the purpose of the present disclosure, the term “optionally substituted cycloalkyl” as used by itself or as part of another group means that the cycloalkyl as defined above is either unsubstituted or substituted with one, two, or three substituents independently chosen from halo, nitro, cyano, hydroxy, amino, alkylamino, dialkylamino, cycloalkylamino, haloalkyl, hydroxyalkyl, alkoxy, haloalkoxy, aryloxy, aralkyl, aralkyloxy, alkylthio, carboxamido, sulfonamido, alkylcarbonyl, arylcarbonyl, alkylsulfonyl, arylsulfonyl, ureido, guanidino, carboxy, carboxyalkyl, alkyl, optionally substituted cycloalkyl, alkenyl, alkynyl, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted heterocyclo, alkoxyalkyl. (amino)alkyl, hydroxyalkylamino, (alkylamino)alkyl, (dialkylamino)alkyl, (cyano)alkyl, (carboxamido)alkyl, mercaptoalkyl, (heterocyclo)alkyl, or (heteroaryl)alkyl. In one embodiment, the optionally substituted cycloalkyl is substituted with two substituents. In another embodiment, the optionally substituted cycloalkyl is substituted with one substituent. In one embodiment, the optionally substituted cycloalkyl is an (amino)cycloalkyl. For the purpose of the present disclosure, the term “(amino)cycloalkyl” as used by itself or as part of another group means that the optionally substituted cycloalkyl as defined above is substituted with one amino or alkylamino group, and optionally one or two additional substituents. In one embodiment, the optionally substituted cycloalkyl is an (amino)cyclohexyl. For the purpose of the present disclosure, the term “(amino)cyclohexyl” as used by itself or as part of another group means that the optionally substituted cycloalkyl as defined above is a cyclohexyl group substituted with one amino or alkylamino group, and optionally one or two additional substituents. Non-limiting exemplary optionally substituted cycloalkyl groups include:

Non-limiting exemplary (amino)cycloalkyl groups include:

Non-limiting exemplary (amino)cyclohexyl groups include:

For the purpose of the present disclosure, the term “optionally substituted cyclohexyl” as used by itself or as part of another group means that the optionally substituted cycloalkyl as defined above is an optionally substituted cyclohexyl group.

For the purpose of the present disclosure, the term “cycloalkylenyl” as used herein by itself or part of another group refers to a divalent form of an optionally substituted cycloalkyl group as defined above. In one embodiment, the cycloalkylenyl is a “cyclohexylenyl.” The term “cyclohexylenyl” as used herein by itself or part of another group refers to a divalent form of an optionally substituted cyclohexyl group. Non-limiting exemplary cycloalkylenyl groups include:

For the purpose of the present disclosure, the term “1,4-cyclohexylenyl” as used herein by itself or part of another group refers to a cyclohexylenyl as defined above wherein the radicals are in the 1 and 4 positions of the cyclohexyl ring. Non-limiting exemplary 1,4-cyclohexylenyl groups include:

For the purpose of the present disclosure, the term “(cycloalkylenyl)alkyl” as used herein by itself or part of another group refers to an alkyl group substituted with a divalent form of an optionally substituted cycloalkyl group. In one embodiment, the cycloalkylenyl is a divalent form of optionally substituted cyclohexyl. In one embodiment, the alkyl is C_1-4 alkyl. Non-limiting exemplary (cycloalkylenyl)alkyl groups include:

For the purpose of the present disclosure, the term “cycloalkenyl” as used by itself or part of another group refers to a partially unsaturated cycloalkyl group as defined above. In one embodiment, the cycloalkenyl has one carbon-to-carbon double bond. In another embodiment, the cycloalkenyl group is chosen from a C_4-8 cycloalkenyl group. Exemplary cycloalkenyl groups include cyclopentenyl and cyclohexenyl.

For the purpose of the present disclosure, the term “optionally substituted cycloalkenyl” as used by itself or as part of another group means that the cycloalkenyl as defined above is either unsubstituted or substituted with one, two, or three substituents independently chosen from halo, nitro, cyano, hydroxy, amino, alkylamino, dialkylamino, haloalkyl, monohydroxyalkyl, dihydroxyalkyl, alkoxy, haloalkoxy, aryloxy, aralkyloxy, alkylthio, carboxamido, sulfonamido, alkylcarbonyl, arylcarbonyl, alkylsulfonyl, arylsulfonyl, ureido, guanidino, carboxy, carboxyalkyl, alkyl, optionally substituted cycloalkyl, alkenyl, alkynyl, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted heterocyclo, alkoxyalkyl, (amino)alkyl, hydroxyalkylamino, (alkylamino)alkyl, (dialkylamino)alkyl, (cyano)alkyl, (carboxamido)alkyl, mercaptoalkyl, (heterocyclo)alkyl, and (heteroaryl)alkyl. In one embodiment, the optionally substituted cycloalkenyl is substituted with two substituents. In another embodiment, the optionally substituted cycloalkenyl is substituted with one substituent. In another embodiment, the cycloalkenyl is unsubstituted.

For the purpose of the present disclosure, the term “alkenyl” as used by itself or as part of another group refers to an alkyl group as defined above containing one, two or three carbon-to-carbon double bonds. In one embodiment, the alkenyl group is chosen from a C_2-6 alkenyl group. In another embodiment, the alkenyl group is chosen from a C_2-4 alkenyl group. Non-limiting exemplary alkenyl groups include ethenyl, propenyl, isopropenyl, butenyl, sec-butenyl, pentenyl, and hexenyl.

For the purpose of the present disclosure, the term “optionally substituted alkenyl” as used herein by itself or as part of another group means the alkenyl as defined above is either unsubstituted or substituted with one, two or three substituents independently chosen from halo, nitro, cyano, hydroxy, amino, alkylamino, dialkylamino, haloalkyl, hydroxyalkyl, alkoxy, haloalkoxy, aryloxy, aralkyloxy, alkylthio, carboxamido, sulfonamido, alkylcarbonyl, arylcarbonyl, alkylsulfonyl, arylsulfonyl, ureido, guanidino, carboxy, carboxyalkyl, alkyl, optionally substituted cycloalkyl, alkenyl, alkynyl, optionally substituted aryl, optionally substituted heteroaryl, or optionally substituted heterocyclo.

For the purpose of the present disclosure, the term “alkynyl” as used by itself or as part of another group refers to an alkyl group as defined above containing one to three carbon-to-carbon triple bonds. In one embodiment, the alkynyl has one carbon-to-carbon triple bond. In one embodiment, the alkynyl group is chosen from a C_2-6 alkynyl group. In another embodiment, the alkynyl group is chosen from a C_2-4 alkynyl group. Non-limiting exemplary alkynyl groups include ethynyl, propynyl, butynyl, 2-butynyl, pentynyl, and hexynyl groups.

For the purpose of the present disclosure, the term “optionally substituted alkynyl” as used herein by itself or as part of another group means the alkynyl as defined above is either unsubstituted or substituted with one, two or three substituents independently chosen from halo, nitro, cyano, hydroxy, amino, alkylamino, dialkylamino, haloalkyl, hydroxyalkyl, alkoxy, haloalkoxy, aryloxy, aralkyloxy, alkylthio, carboxamido, sulfonamido, alkylcarbonyl, arylcarbonyl, alkylsulfonyl, arylsulfonyl, ureido, guanidino, carboxy, carboxyalkyl, alkyl, cycloalkyl, alkenyl, alkynyl, aryl, heteroaryl, or heterocyclo.

For the purpose of the present disclosure, the term “haloalkyl” as used by itself or as part of another group refers to an alkyl group substituted by one or more fluorine, chlorine, bromine and/or iodine atoms. In one embodiment, the alkyl group is substituted by one, two, or three fluorine and/or chlorine atoms. In another embodiment, the haloalkyl group is chosen from a C_1-4 haloalkyl group. Non-limiting exemplary haloalkyl groups include fluoromethyl, difluoromethyl, trifluoromethyl, pentafluoroethyl, 1,1-difluoroethyl, 2,2-difluoroethyl, 2,2,2-trifluoroethyl, 3,3,3-trifluoropropyl, 4,4,4-trifluorobutyl, and trichloromethyl groups.

For the purpose of the present disclosure, the term “fluoroalkyl” as used by itself or as part of another group refers to an alkyl group substituted by one or more fluorine atoms. In one embodiment, the alkyl group is substituted by one, two, or three fluorine atoms. In another embodiment, the fluoroalkyl group is chosen from a C_1-4 fluoroalkyl group. Non-limiting exemplary fluoroalkyl groups include fluoromethyl, difluoromethyl, trifluoromethyl, pentafluoroethyl, 1,1-difluoroethyl, 2,2-difluoroethyl, 2,2,2-trifluoroethyl, 3,3,3-trifluoropropyl, and 4,4,4-trifluorobutyl.

For the purpose of the present disclosure, the term “hydroxyalkyl” as used by itself or as part of another group refers to an alkyl group substituted with one or more, e.g., one, two, or three, hydroxy groups. In one embodiment, the hydroxyalkyl group is a monohydroxyalkyl group, i.e., substituted with one hydroxy group. In another embodiment, the hydroxyalkyl group is a dihydroxyalkyl group, i.e., substituted with two hydroxy groups. In another embodiment, the hydroxyalkyl group is chosen from a C_1-4 hydroxyalkyl group. Non-limiting exemplary hydroxyalkyl groups include hydroxymethyl, hydroxyethyl, hydroxypropyl and hydroxybutyl groups, such as I-hydroxyethyl, 2-hydroxyethyl, 1,2-dihydroxyethyl, 2-hydroxypropyl, 3-hydroxypropyl, 3-hydroxybutyl, 4-hydroxybutyl, 2-hydroxy-1-methylpropyl, and 1,3-dihydroxyprop-2-yl.

For the purpose of the present disclosure, the term “alkoxy” as used by itself or as part of another group refers to an optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted alkenyl or optionally substituted alkynyl attached to a terminal oxygen atom. In one embodiment, the alkoxy group is chosen from a C_1-4 alkoxy group. In another embodiment, the alkoxy group is chosen from a C_1-4 alkyl attached to a terminal oxygen atom, e.g., methoxy, ethoxy, tert-butoxy, —OCH₂C≡CH, —OCH₂C≡CCH₃, and —OCH₂CH₂CH₂C≡CH.

For the purpose of the present disclosure, the term “alkylthio” as used by itself or as part of another group refers to a sulfur atom substituted by an optionally substituted alkyl group. In one embodiment, the alkylthio group is chosen from a C_1-4 alkylthio group. Non-limiting exemplary alkylthio groups include —SCH₃, and —SCH₂CH₃.

For the purpose of the present disclosure, the term “alkoxyalkyl” as used by itself or as part of another group refers to an alkyl group substituted with an alkoxy group. Non-limiting exemplary alkoxyalkyl groups include methoxymethyl, methoxyethyl, methoxypropyl, methoxybutyl, ethoxymethyl, ethoxyethyl, ethoxypropyl, ethoxybutyl, propoxymethyl, iso-propoxymethyl, propoxyethyl, propoxypropyl, butoxymethyl, tert-butoxymethyl, isobutoxymethyl, sc-butoxymethyl, pentyloxymethyl, —CH₂OCH₂C≡CH and —CH₂OCH₂CH₂CH₂C≡CH.

For the purpose of the present disclosure, the term “haloalkoxy” as used by itself or as part of another group refers to a haloalkyl attached to a terminal oxygen atom. Non-limiting exemplary haloalkoxy groups include fluoromethoxy, difluoromethoxy, trifluoromethoxy, and 2,2,2-trifluoroethoxy.

For the purpose of the present disclosure, the term “heteroalkyl” as used by itself or part of another group refers to a stable straight or branched chain hydrocarbon radical containing 1 to 10 carbon atoms and at least two heteroatoms, which can be the same or different, selected from O, N, or S, wherein: 1) the nitrogen atom(s) and sulfur atom(s) can optionally be oxidized; and/or 2) the nitrogen atom(s) can optionally be quaternized. The heteroatoms can be placed at any interior position of the heteroalkyl group or at a position at which the heteroalkyl group is attached to the remainder of the molecule. In one embodiment, the heteroalkyl group contains two oxygen atoms. In one embodiment, the heteroalkyl contains one oxygen and one nitrogen atom, e.g., a (hydroxyalkylamino)alkyl group, e.g., —CH₂N(CH₃)CH₂CH₂CH₂OH. In one embodiment, the heteroalkyl contains two nitrogen atoms. Non-limiting exemplary heteroalkyl groups include —CH₂OCH₂CH₂OCH₃, —OCH₂CH₂OCH₂CH₂OCH₃, —CH—₂NHCH₂CH₂OCH₂, —OCH₂CH₂NH₂, —NHCH₂CH₂N(H)CH₇, —NHCH₂CH₂OCH₃, —CH₂OCH₂CH₂NH₂, —CH₂OCH₂CH₂N(H)CH₂CH₃, and —OCH₂CH₂OCH₃.

For the purpose of the present disclosure, the term “aryl” as used by itself or as part of another group refers to a monocyclic or bicyclic aromatic ring system having from six to fourteen carbon atoms (i.e., C_6-14 aryl). Non-limiting exemplary aryl groups include phenyl (abbreviated as “Ph”), naphthyl, phenanthryl, anthracyl, indenyl, azulenyl, biphenyl, biphenylenyl, and fluorenyl groups. In one embodiment, the aryl group is chosen from phenyl or naphthyl. In one embodiment, the aryl group is phenyl.

For the purpose of the present disclosure, the term “optionally substituted aryl” as used herein by itself or as part of another group means that the aryl as defined above is either unsubstituted or substituted with one to five substituents independently selected from the group consisting of halo, nitro, cyano, hydroxy, amino, alkylamino, dialkylamino, haloalkyl, hydroxyalkyl, alkoxy, haloalkoxy, aryloxy, heteroaryloxy, aralkyl aralkyloxy, (aralkyloxy)alkyl, alkylthio, carboxamido, sulfonamido, alkylcarbonyl, arylcarbonyl, alkylsulfonyl, arylsulfonyl, ureido, guanidino, carboxy, carboxyalkyl, heteroalkyl optionally substituted alkyl, optionally substituted cycloalkyl, alkenyl, alkynyl, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted heterocyclo, (C_1-4 haloalkoxy)alkyl, alkoxyalkyl, (amino)alkyl, hydroxyalkylamino, (alkylamino)alkyl, (dialkylamino)alkyl, (cyano)alkyl, (carboxamido)alkyl, mercaptoalkyl, (heterocyclo)alkyl, (cycloalkylamino)alkyl, (hydroxyalkylamino)alkyl, (amino)(heteroaryl)alkyl, (heterocycloamino)alkyl (amino)(hydroxy)alkyl, (heteroaryl)alkyl, —N(R⁴³)(R⁴⁴), —CH₂N(H)C(═O)—R⁴⁵, and —N(H)C(═O)—R⁴⁵, wherein R⁴³ is hydrogen, C_1-4 alkyl, optionally substituted aryl, or optionally substituted heteroaryl; R⁴⁴ is alkoxyalkyl, (heterocyclo)alkyl, (amino)alkyl, (alkylamino)alkyl, or (dialkylamino)alkyl; and R⁴⁵ is alkyl, alkoxyalkyl, (heterocyclo)alkyl. (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl, optionally substituted aryl, optionally substituted heteroaryl, aralkyl, or (heteroaryl)alkyl In one embodiment, the optionally substituted aryl is an optionally substituted phenyl. In one embodiment, the optionally substituted phenyl has four substituents. In another embodiment, the optionally substituted phenyl has three substituents. In another embodiment, the optionally substituted phenyl has two substituents. In another embodiment, the optionally substituted phenyl has one substituent. In another embodiment, the optionally substituted phenyl has at least one amino, alkylamino, dialkylamino, (amino)alkyl, (alkylamino)alkyl, (dialkylamino)alkyl. (amino)(heteroaryl)alkyl, or (amino)(hydroxy)alkyl substituent. Non-limiting exemplary substituted aryl groups include 2-methylphenyl, 2-methoxyphenyl, 2-fluorophenyl, 2-chlorophenyl, 2-bromophenyl, 3-methylphenyl, 3-methoxyphenyl, 3-fluorophenyl, 3-chlorophenyl, 4-methylphenyl, 4-ethylphenyl, 4-methoxyphenyl, 4-fluorophenyl, 4-chlorophenyl, 2,6-di-fluorophenyl, 2,6-di-chlorophenyl, 2-methyl, 3-methoxyphenyl, 2-ethyl, 3-methoxyphenyl, 3,4-di-methoxyphenyl, 3,5-di-fluorophenyl 3,5-di-methylphenyl, 3,5-dimethoxy, 4-methylphenyl, 2-fluoro-3-chlorophenyl, 3-chloro-4-fluorophenyl, and 2-phenylpropan-2-amine. The term optionally substituted aryl is meant to include aryl groups having fused optionally substituted cycloalkyl and fused optionally substituted heterocyclo rings. Examples include:

For the purpose of the present disclosure, the term “arylenyl” as used herein by itself or part of another group refers to a divalent form of an optionally substituted aryl group as defined above. In one embodiment, the arylenyl is a divalent form of an optionally substituted phenyl. In one embodiment, the arylenyl is a divalent form of phenyl. Non-limiting exemplary alkylenyl groups include:

For the purpose of the present disclosure, the term “aryloxy” as used by itself or as part of another group refers to an optionally substituted aryl attached to a terminal oxygen atom. A non-limiting exemplary aryloxy group is PhO—.

For the purpose of the present disclosure, the term “heteroaryloxy” as used by itself or as part of another group refers to an optionally substituted heteroaryl attached to a terminal oxygen atom.

For the purpose of the present disclosure, the term “aralkyloxy” or “arylalkyloxy” as used by itself or as part of another group refers to an aralkyl group attached to a terminal oxygen atom. A non-limiting exemplary aralkyloxy group is PhCH₂O—.

For the purpose of the present disclosure, the term “(aralkyloxy)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with an aralkyloxy group. In one embodiment, the alkyl is a C_1-4 alkyl. Non-limiting exemplary “(aralkyloxy)alkyl” groups include —CH₄OCH₁(3-F-Ph) and —CH₂OCH₂CH₂CH₂(2-OMe-Ph).

For the purpose of the present disclosure, the term “heteroaryl” or “heteroaromatic” refers to monocyclic and bicyclic aromatic ring systems having 5 to 14 ring members (i.e., a 5- to 14-membered heteroaryl) and 1, 2, 3, or 4 heteroatoms independently chosen from oxygen, nitrogen or sulfur. In one embodiment, the heteroaryl has three heteroatoms. In another embodiment, the heteroaryl has two heteroatoms. In another embodiment, the heteroaryl has one heteroatom. In one embodiment, the heteroaryl has 5 ring atoms, e.g., thienyl. In another embodiment, the heteroaryl has 6 ring atoms, e.g., pyridyl. Non-limiting exemplary heteroaryl groups include thienyl, benzo[b]thienyl, naphtho[2,3-b]thienyl, thianthrenyl, furyl, benzofuryl, pyranyl, isobenzofuranyl, benzooxazonyl, chromenyl, xanthenyl, 2H-pyrrolyl, pyrrolyl, imidazolyl, pyrazolyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, isoindolyl, 3H-indolyl, indolyl, indazolyl, purinyl, isoquinolyl, quinolyl, phthalazinyl, naphthyridinyl, cinnolinyl, quinazolinyl, pteridinyl, 4aH-carbazolyl, carbazolyl, β-carbolinyl, phenanthridinyl, acridinyl, pyrimidinyl, phenanthrolinyl, phenazinyl, thiazolyl, isothiazolyl, phenothiazolyl, isoxazolyl, furazanyl, and phenoxazinyl. In one embodiment, the heteroaryl is chosen from thienyl (e.g., thien-2-yl and thien-3-yl), furyl (e.g., 2-furyl and 3-furyl), pyrrolyl (e.g., 1H-pyrrol-2-yl and 1H-pyrrol-3-yl), imidazolyl (e.g., 2H-imidazol-2-yl and 2H-imidazol-4-yl), pyrazolyl (e.g., 1H-pyrazol-3-yl, 1H-pyrazol-4-yl, and 1H-pyrazol-5-yl), pyridyl (e.g., pyridin-2-yl, pyridin-3-yl, and pyridin-4-yl), pyrimidinyl (e.g., pyrimidin-2-yl, pyrimidin-4-yl, and pyrimidin-5-yl), thiazolyl (e.g., thiazol-2-yl, thiazol-4-yl, and thiazol-5-yl), isothiazolyl (e.g., isothiazol-3-yl, isothiazol-4-yl, and isothiazol-5-yl), oxazolyl (e.g., oxazol-2-yl, oxazol-4-yl, and oxazol-5-yl) and isoxazolyl (e.g., isoxazol-3-yl, isoxazol-4-yl, and isoxazol-5-yl). The term “heteroaryl” is also meant to include possible N-oxides. Exemplary N-oxides include pyridyl N-oxide.

For the purpose of the present disclosure, the term “optionally substituted heteroaryl” as used by itself or as part of another group means that the heteroaryl as defined above is either unsubstituted or substituted with one to four substituents, e.g., one or two substituents, independently chosen from halo, nitro, cyano, hydroxy, amino, alkylamino, dialkylamino, haloalkyl, hydroxyalkyl, alkoxy, haloalkoxy, aralkyl, aryloxy, aralkyloxy, alkylthio, carboxamido, sulfonamido, alkylcarbonyl, arylcarbonyl, alkylsulfonyl, arylsulfonyl, ureido, guanidino, carboxy, carboxyalkyl, alkyl, optionally substituted cycloalkyl, alkenyl, alkynyl, optionally substituted aryl, optionally substituted heteroaryl, optionally substituted heterocyclo, alkoxyalkyl, (amino)alkyl, hydroxyalkylamino, (alkylamino)alkyl, (dialkylamino)alkyl, (cyano)alkyl. (carboxamido)alkyl, mercaptoalkyl, (heterocyclo)alkyl, (heteroaryl)alkyl, —N(R⁴³)(R⁴⁴), or —N(H)C(═O)—R⁴⁵, wherein R⁴³ is hydrogen or C_1-4 alkyl; R⁴⁴ is alkoxyalkyl, (heterocyclo)alkyl, (amino)alkyl, (alkylamino)alkyl, or (dialkylamino)alkyl; and R⁴⁵ is alkyl, optionally substituted aryl, or optionally substituted heteroaryl. In one embodiment, the optionally substituted heteroaryl has one substituent. In one embodiment, the substituent is amino, alkylamino, dialkylamino, (amino)alkyl, hydroxyalkylamino, (alkylamino)alkyl, (dialkylamino)alkyl, (heterocyclo)alkyl, —N(R⁴³)(R⁴⁴), or —N(H)C(═O)—R⁴⁵. In one embodiment, the substituent is aralkyl or (heteroaryl)alkyl. Examples include:

In one embodiment, the optionally substituted heteroaryl is an optionally substituted pyridyl, i.e., 2-, 3-, or 4-pyridyl. Any available carbon or nitrogen atom can be substituted. The term optionally substituted heteroaryl is meant to include heteroaryl groups having fused optionally substituted cycloalkyl and fused optionally substituted heterocyclo rings. Examples include:

For the purpose of the present disclosure, the term “heteroarylenyl” as used herein by itself or part of another group refers to a divalent form of an optionally substituted heteroaryl group as defined above. In one embodiment, the heteroarylenyl is a divalent form of an optionally substituted pyridyl. Non-limiting exemplary heteroarylenyl groups include:

For the purpose of the present disclosure, the term “heterocycle” or “heterocyclo” as used by itself or as part of another group refers to saturated and partially unsaturated (e.g., containing one or two double bonds) cyclic groups containing one, two, or three rings having from three to fourteen ring members (i.e., a 3- to 14-membered heterocyclo) and at least one heteroatom. Each heteroatom is independently selected from the group consisting of oxygen, sulfur, including sulfoxide and sulfone, and/or nitrogen atoms, which can be quaternized. The term “heterocyclo” is meant to include cyclic ureido groups such as imidazolidinyl-2-one, cyclic amide groups such as β-lactam, γ-lactam, δ-lactam and ε-lactam, and cyclic carbamate groups such as oxazolidinyl-2-one. The term “heterocyclo” is also meant to include groups having fused optionally substituted aryl groups, e.g., indolinyl, indolinyl-2-one, benzo[d]oxazolyl-2(3H)one. In one embodiment, the heterocyclo group is chosen from a 4-, 5-, 6-, 7- or 8-membered cyclic group containing one ring and one or two oxygen and/or nitrogen atoms. In one embodiment, the heterocyclo group is chosen from a 5- or 6-membered cyclic group containing one ring and one or two nitrogen atoms. In one embodiment, the heterocyclo group is chosen from a 8-, 9-, 10-, 11-, or 12-membered cyclic group containing two rings and one or two nitrogen atoms. The heterocyclo can be optionally linked to the rest of the molecule through a carbon or nitrogen atom. Non-limiting exemplary heterocyclo groups include 2-oxopyrrolidin-3-yl, 2-imidazolidinone, piperidinyl, morpholinyl, piperazinyl, pyrrolidinyl, 8-azabicyclo[3.2.1]octane (nortropane), 6-azaspiro[2.5]octane, 6-azaspiro[3.4]octane, indolinyl, indolinyl-2-one, 1,3-dihydro-2H-benzo[d]imidazol-2-one

For the purpose of the present disclosure, the term “optionally substituted heterocyclo” as used herein by itself or part of another group means the heterocyclo as defined above is either unsubstituted or substituted with one to four substituents independently selected from halo, nitro, cyano, hydroxy, amino, alkylamino, dialkylamino, haloalkyl, hydroxyalkyl, alkoxy, haloalkoxy, aryloxy, aralkyl aralkyloxy, alkylthio, carboxamido, sulfonamido, alkylcarbonyl, arylcarbonyl, alkylsulfonyl, arylsulfonyl, ureido, guanidino, carboxy, carboxyalkyl, alkyl, cycloalkyl, alkenyl, alkynyl, aryl, heteroaryl, heterocyclo, alkoxyalkyl, (amino)alkyl, hydroxyalkylamino. (alkylamino)alkyl, (dialkylamino)alkyl, (cyano)alkyl, (carboxamido)alkyl, mercaptoalkyl, (heterocyclo)alkyl, and (heteroaryl)alkyl. Substitution may occur on any available carbon or nitrogen atom, and may form a spirocycle. In one embodiment, the optionally substituted heterocyclo is substituted with at least one amino, alkylamino, or dialkylamino group. Non-limiting exemplary optionally substituted heterocyclo groups include:

For the purpose of the present disclosure, the term “heterocyclenyl” as used herein by itself or part of another group refers to a divalent form of an optionally substituted heterocyclo group as defined above. In one embodiment, the heterocyclenyl is a divalent form of an optionally substituted azetidine. In one embodiment, the heterocyclenyl is a divalent form of an optionally substituted piperidinyl. Non-limiting exemplary heterocyclenyl groups include:

For the purpose of the present disclosure, the term “optionally substituted pyrrolidinyl” as used by itself or as part of another group means that the optionally substituted heterocyclo as defined above is an optionally substituted pyrrolidinyl group.

For the purpose of the present disclosure, the term “optionally substituted pyrrolidinonyl” as used herein by itself or part of another group refers to a divalent form of an optionally substituted pyrrolidinyl group as defined above. Non-limiting exemplary optionally substituted pyrrolidinenyl groups include:

For the purpose of the present disclosure, the term “optionally substituted, optionally bridged piperidinenyl” as used by itself or as part of another group refers to a divalent form having the following structure:

wherein:

R^2′a, R^2′b, R^3′a, R^3′b, R^4′a, R^4′b, R^5′a, and R^5′b are each independently selected from the group consisting of hydrogen, halo, C_1-6 alkyl, C_3-12 cycloalkyl, haloalkyl, hydroxyalkyl, optionally substituted C_6-14 aryl, aralkyl, and alkoxycarbonyl; or

R^2′a and R^2′b taken together with the carbon atom to which they are attached form a C_3-6 cycloalkyl; and R^3′a, R^3′b, R^4′a, R^4′bR^5′a, and R^5′b are each independently selected from the group consisting of hydrogen, halo, and C_1-4 alkyl; or

R^3′a and R^3′b taken together with the carbon atom to which they are attached form a C_3-6 cycloalkyl; and R^2′a, R^2′b, R^4′a, R^4′b, R^5′a, and R^5′b are each independently selected from the group consisting of hydrogen, halo, and C_1-4 alkyl; or

R^4a and R^4b taken together with the carbon atom to which they are attached form a Cu cycloalkyl; and R^2′a, R^2′b, R^3′a, R^3′b, R^4′a, and R^4′b are each independently selected from the group consisting of hydrogen, halo, and C_1-4 alkyl; or

R^5′a and R^5′b taken together with the carbon atom to which they are attached form a C_3-6 cycloalkyl; and R^2′a, R^2′b, R^3′a, R^3′b, R^4′a, and R^4′b are each independently selected from the group consisting of hydrogen, halo, and C_1-4 alkyl; or

R^2′a and R^5′a taken together form a C_1-4 bridge; and R^2′b, R^3′a, R^3′b, R^4′a, R^4′b, and R^5′b are each independently selected from the group consisting of hydrogen, halo, and C_1-4 alkyl, or

R^3′a and R^4′a taken together form a C_1-4 bridge; and R^2′a, R^2′b, R^3′b, R^4′a, R^5′a, and R^5′b are each independently selected from the group consisting of hydrogen, halo, and C_1-4 alkyl; or

R^2′a and R^4′a taken together form a C_1-4 bridge; and R^2′b, R^3′a, R^3′b, R^4′b, R^5′a, and R^5′b are each independently selected from the group consisting of hydrogen, halo, and C_1-4 alkyl; or

R^3′a and R^5′a taken form a C_1-4 bridge; and R^2′a, R^2′b, R^3′b, R^4′a, R^4′b, and R^5′b are each independently selected from the group consisting of hydrogen, halo, and C_1-4 alkyl;

R^6′ is selected from the group consisting of hydrogen and C_1-4 alkyl;

For the purpose of the present disclosure, the term “amino” as used by itself or as part of another group refers to —NH₂.

For the purpose of the present disclosure, the term “alkylamino” as used by itself or as part of another group refers to —NHR²², wherein R²² is C_1-6 alkyl. In one embodiment, R²² is C_1-4 alkyl. Non-limiting exemplary alkylamino groups include —N(H)CH₃ and —N(H)CH₂CH₃.

For the purpose of the present disclosure, the term “dialkylamino” as used by itself or as part of another group refers to —NR^23aR^23b, wherein R^23a and R^23b are each independently C_1-6 alkyl. In one embodiment, R^23a and R^23b are each independently C_1-4 alkyl. Non-limiting exemplary dialkylamino groups include —N(CH₃)₂ and —N(CH₃)CH₂CH(CH₃)₂.

For the purpose of the present disclosure, the term “hydroxyalkylamino” as used by itself or as part of another group refers to —NR^24a R^24b, wherein R^24a is hydrogen or C_1-4 alkyl, and R^24b is hydroxyalkyl. Non-limiting exemplary hydroxyalkylamino groups include —N(H)CH₂CH₂OH, —N(H)CH₂CH₂CH₂OH, —N(CH₃)CH₂CH₂OH, and —N(CH₃)CH₂CH₂CH₂OH

For the purpose of the present disclosure, the term “(hydroxyalkylamino)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with an hydroxyalkylamino group. In one embodiment, the alkyl is a C_1-4 alkyl. A non-limiting exemplary (hydroxyalkylamino)alkyl group is —CH₂N(CH₃)CH₂CH₂CH₂OH.

For the purpose of the present disclosure, the term “cycloalkylamino” as used by itself or as part of another group refers to —NR^25aR^25b, wherein R^25a is optionally substituted cycloalkyl and R^25b is hydrogen or C_1-4 alkyl.

For the purpose of the present disclosure, the term “heterocycloamino” as used by itself or as part of another group refers to —NR^25cR^25d, wherein R^25c is optionally substituted heterocyclo and R^25d is hydrogen or C_1-4 alkyl. Non-limiting exemplary heterocycloamino groups include:

For the purpose of the present disclosure, the term “(heterocycloamino)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with an heterocycloamino group. In one embodiment, the alkyl is a C_1-4 alkyl.

For the purpose of the present disclosure, the term “aralkylamino” as used by itself or as part of another group refers to —NR^26aR^26b, wherein R^26a is aralkyl and R^26b is hydrogen or C_1-4 alkyl. Non-limiting exemplary aralkylamino groups include —N(H)CH₂Ph and —N(CH₃)CH₂Ph.

For the purpose of the present disclosure, the term “(amino)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with an amino group. In one embodiment, the alkyl is a C_1-4 alkyl. Non-limiting exemplary (amino)alkyl groups include —CH₂NH₂, —C(NH₂)(H)CH₃, —CH₂CH₂NH₂, —CH₂C(NH₂)(H)CH₃, —CH₂CH₂CH₂NH₂, —CH₂CH₂CH₂CH₂NH₂, and —CH₂C(CH₃)₂CH₂NH₂.

For the purpose of the present disclosure, the term “(alkylamino)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with an alkylamino group. In one embodiment, the alkyl is a C_1-4 alkyl. A non-limiting exemplary (alkylamino)alkyl group is —CH₂CH₂N(H)CH₃.

For the purpose of the present disclosure, the term “(dialkylamino)alkyl” as used by itself or as part of another group refers to an alkyl group substituted by a dialkylamino group. In one embodiment, the alkyl is a C_1-4 alkyl. Non-limiting exemplary (dialkylamino)alkyl groups are —CH₂CH₂N(CH₃)₂.

For the purpose of the present disclosure, the term “(cycloalkylamino)alkyl” as used by itself or as part of another group refers to an alkyl group substituted by a cycloalkylamino group. In one embodiment, the alkyl is a C_1-4 alkyl. Non-limiting exemplary (cycloalkylamino)alkyl groups include —CH₂N(H)cyclopropyl, —CH₂N(H)cyclobutyl, and —CH₂N(H)cyclohexyl.

For the purpose of the present disclosure, the term “(aralkylamino)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with an aralkylamino group. In one embodiment, the alkyl is a C_1-4 alkyl. A non-limiting exemplary (aralkylamino)alkyl group is —CH₂CH₂CH₂N(H)CH₂Ph.

For the purpose of the present disclosure, the term “(hydroxyalkylamino)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with an hydroxyalkylamino group. A non-limiting exemplary (hydroxyalkylamino)alkyl group is —CH₂CH₂NHCH₂CH₂OH

For the purpose of the present disclosure, the term “(cyano)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with one or more cyano, e.g., —CN, groups. In one embodiment, the alkyl is a C_1-4 alkyl. Non-limiting exemplary (cyano)alkyl groups include —CH₂CH₂CN, —CH₂CH₂CH₂CN, and —CH₂C₂CH₂CH₂CH₂CN.

For the purpose of the present disclosure, the term “(amino)(hydroxy)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with one amino, alkylamino, dialkylamino, or heterocyclo group and one hydroxy group. In one embodiment, the alkyl is a C_1-6 alkyl. In another embodiment, the alkyl is a C_1-4 alkyl. Non-limiting exemplary (amino)(hydroxy)alkyl groups include:

For the purpose of the present disclosure, the term “(amino)(carboxamido)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with one amino, alkylamino, or dialkylamino, and one carboxamido group. In one embodiment, the alkyl is a C_1-6 alkyl. Non-limiting exemplary (amino)(carboxamido)alkyl groups include:

For the purpose of the present disclosure, the term “(amino)(aryl)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with one amino, alkylamino, or dialkylamino group and one optionally substituted aryl group. In one embodiment, the alkyl is a C_1-6 alkyl. In one embodiment, the optionally substituted aryl group is an optionally substituted phenyl. Non-limiting exemplary (amino)(aryl)alkyl groups include:

For the purpose of the present disclosure, the term “(amino)(heteroaryl)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with one amino, alkylamino, or dialkylamino group and one optionally substituted heteroaryl group. In one embodiment, the alkyl is a C_1-6 alkyl. In one embodiment, the alkyl is a C_1-4 alkyl. In one embodiment, the optionally substituted heteroaryl group is an optionally substituted pyridyl. Non-limiting exemplary (amino)(heteroaryl)alkyl groups include:

For the purpose of the present disclosure, the term “(cycloalkyl)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with one optionally substituted cycloalkyl group. In one embodiment, the alkyl is a C_1-4 alkyl. In one embodiment, the cycloalkyl is a C_3-6 cycloalkyl. In one embodiment, the optionally substituted cycloalkyl group is substituted with an amino or (amino)alkyl group. Non-limiting exemplary (cycloalkyl)alkyl groups include:

For the purpose of the present disclosure, the term “(hydroxy)(aryl)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with one hydroxy group and one optionally substituted aryl group. In one embodiment, the alkyl is a C_1-6 alkyl. In one embodiment, the optionally substituted aryl group is an optionally substituted phenyl. Non-limiting exemplary (hydroxy)(aryl)alkyl groups include:

For the purpose of the present disclosure, the term “carboxamido” as used by itself or as part of another group refers to a radical of formula —C(═O)NR^26aR^26b, wherein R^26a and R^26b are each independently hydrogen, optionally substituted alkyl, optionally substituted aryl, aralkyl, (heteroaryl)alkyl, or optionally substituted heteroaryl, or R^26a and R^26b taken together with the nitrogen to which they are attached from a 3- to 8-membered heterocyclo group. In one embodiment, R^26a and R^26b are each independently hydrogen or optionally substituted alkyl. Non-limiting exemplary carboxamido groups include —CONH₂, —CON(H)CH₃, CON(CH₃)₂, and —CON(H)Ph.

For the purpose of the present disclosure, the term “(carboxamido)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with a carboxamido group. Non-limiting exemplary (carboxamido)alkyl groups include —CH₂CONH₂, —C(H)CH₃—CONH₂, and —CH₂CON(H)CH₃.

For the purpose of the present disclosure, the term “sulfonamido” as used by itself or as part of another group refers to a radical of the formula —SO₂NR^27aR^27b, wherein R^27a and R^27b are each independently hydrogen, optionally substituted alkyl, or optionally substituted aryl, or R^27a and R^27b taken together with the nitrogen to which they are attached from a 3- to 8-membered heterocyclo group. Non-limiting exemplary sulfonamido groups include —SO₂NH₂, —SO₂N(H)CH₃, and —SO₂N(H)Ph.

For the purpose of the present disclosure, the term “alkylcarbonyl” as used by itself or as part of another group refers to a carbonyl group, i.e., —C(═O)—, substituted by an alkyl group. A non-limiting exemplary alkylcarbonyl group is —COCH₃.

For the purpose of the present disclosure, the term “arylcarbonyl” as used by itself or as part of another group refers to a carbonyl group, i.e., —C(═O)—, substituted by an optionally substituted aryl group. A non-limiting exemplary arylcarbonyl group is —COPh.

For the purpose of the present disclosure, the term “alkylsulfonyl” as used by itself or as part of another group refers to a sulfonyl group, i.e., —SO₂—, substituted by any of the above-mentioned optionally substituted alkyl groups. A non-limiting exemplary alkylsulfobnyl group is —SO₂CH₃.

For the purpose of the present disclosure, the term “arylsulfonyl” as used by itself or as part of another group refers to a sulfonyl group, i.e., —SO₂—, substituted by any of the above-mentioned optionally substituted aryl groups. A non-limiting exemplary arylsulfonyl group is —SO₂Ph.

For the purpose of the present disclosure, the term “mercaptoalkyl” as used by itself or as part of another group refers to any of the above-mentioned alkyl groups substituted by a —SH group.

For the purpose of the present disclosure, the term “carboxy” as used by itself or as part of another group refers to a radical of the formula —COOH.

For the purpose of the present disclosure, the term “carboxyalkyl” as used by itself or as part of another group refers to any of the above-mentioned alkyl groups substituted with a —COOH. A non-limiting exemplary carboxyalkyl group is —CH₂CO₂H.

For the purpose of the present disclosure, the term “alkoxycarbonyl” as used by itself or as part of another group refers to a carbonyl group, i.e., —C(═O)—, substituted by an alkoxy group. Non-limiting exemplary alkoxycarbonyl groups are —CO₂Me and —CO₂Et.

For the purpose of the present disclosure, the term “aralkyl” or “arylalkyl” as used by itself or as part of another group refers to an alkyl group substituted with one, two, or three optionally substituted aryl groups. In one embodiment, the aralkyl group is a C_1-4 alkyl substituted with one optionally substituted aryl group. Non-limiting exemplary aralkyl groups include benzyl, phenethyl, —CHPh₂, —CH₂(4-OH-Ph), and —CH(4-F-Ph)₂.

For the purpose of the present disclosure, the term “ureido” as used by itself or as part of another group refers to a radical of the formula —NR^30a—C(═O)—NR^30bR^30c, wherein R^22a is hydrogen, alkyl, or optionally substituted aryl, and R^30b and R^30c are each independently hydrogen, alkyl, or optionally substituted aryl, or R^30b and R^30c taken together with the nitrogen to which they are attached form a 4- to 8-membered heterocyclo group. Non-limiting exemplary ureido groups include —NH—C(C═O)—NH₂ and —NH—C(C═O)—NHCH₃.

For the purpose of the present disclosure, the term “guanidino” as used by itself or as part of another group refers to a radical of the formula —NR^28a—C(═NR²⁹)—NR^28bR^28c, wherein R^28a, R^28b, and R^28c are each independently hydrogen, alkyl, or optionally substituted aryl, and R²⁹ is hydrogen, alkyl, cyano, alkylsulfonyl, alkylcarbonyl, carboxamido, or sulfonamido. Non-limiting exemplary guanidino groups include —NH—C(C═NH)—NH₂, —NH—C(C═NCN)—NH₂, and —NH—C(C═NH)—NHCH₃.

For the purpose of the present disclosure, the term “(heterocyclo)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with one, two, or three optionally substituted heterocyclo groups. In one embodiment, the (heterocyclo)alkyl is a C_1-4 alkyl substituted with one optionally substituted heterocyclo group. The heterocyclo can be linked to the alkyl group through a carbon or nitrogen atom. Non-limiting exemplary (heterocyclo)alkyl groups include:

For the purpose of the present disclosure, the term “(heteroaryl)alkyl” as used by itself or as part of another group refers to an alkyl group substituted with one, two, or three optionally substituted heteroaryl groups. In one embodiment, the (heteroaryl)alkyl group is a C_1-4 alkyl substituted with one optionally substituted heteroaryl group. Non-limiting exemplary (heteroaryl)alkyl groups include:

For the purpose of the present disclosure, the term “alkylcarbonylamino” as used by itself or as part of another group refers to an alkylcarbonyl group attached to an amino. A non-limiting exemplary alkylcarbonylamino group is —NHCOCH₃.

For the purpose of the present disclosure, the term “C_1-4 bridge” refers to a —CH₂—, —(CH₂)₂—, —(CH₂)₃—, or —(CH₂)₄— group that joins two carbon atoms of a piperidine to form an azabicyclo group. For example, in Formula I, R^3a and R^4a of B can be taken together to form a 6-azabicyclo[3.1.1]heptane, 8-azabicyclo[3.2.1]octane, 9-azabicyclo[3.3.1]nonane, or 10-azabicyclo[4.3.1]decane group. Each methylene unit of the C_1-4 bridge can be optionally substituted with one or two substituents independently selected from the group consisting of C_1-4 alkyl and halo.

The present disclosure encompasses any of the Compounds of the Disclosure being isotopically-labelled (i.e., radiolabeled) by having one or more atoms replaced by an atom having a different atomic mass or mass number. Examples of isotopes that can be incorporated into the disclosed compounds include isotopes of hydrogen, carbon, nitrogen, oxygen, phosphorous, fluorine and chlorine, such as ²H (or deuterium (D)), ³H, ¹¹C, ¹³C, ¹⁴C, ⁵N, ¹³O, ¹⁷O, ³¹P, ³²P, ³⁵S, ¹⁸F, and ³⁶Cl, respectively, e.g., ³H, ¹¹C, and ¹⁴C. In one embodiment, provided is a composition wherein substantially all of the atoms at a position within the Compound of the Disclosure are replaced by an atom having a different atomic mass or mass number. In another embodiment, provided is a composition wherein a portion of the atoms at a position within the Compound of the disclosure are replaced, i.e., the Compound of the Disclosure is enriched at a position with an atom having a different atomic mass or mass number.” Isotopically-labelled Compounds of the Disclosure can be prepared by methods known in the art.

Compounds of the Disclosure may contain one or more asymmetric centers and may thus give rise to enantiomers, diasteromers, and other stereoisomeric forms. The present disclosure is meant to encompass the use of all such possible forms, as well as their racemic and resolved forms and mixtures thereof. The individual enantiomers can be separated according to methods known in the art in view of the present disclosure. When the compounds described herein contain olefinic double bonds or other centers of geometric asymmetry, and unless specified otherwise, it is intended that they include both E and Z geometric isomers. All tautomers are intended to be encompassed by the present disclosure as well.

As used herein, the term “stereoisomers” is a general term for all isomers of individual molecules that differ only in the orientation of their atoms in space. It includes enantiomers and isomers of compounds with more than one chiral center that are not mirror images of one another (diastereomers).

The term “chiral center” or “asymmetric carbon atom” refers to a carbon atom to which four different groups are attached.

The terms “enantiomer” and “enantiomeric” refer to a molecule that cannot be superimposed on its mirror image and hence is optically active wherein the enantiomer rotates the plane of polarized light in one direction and its mirror image compound rotates the plane of polarized light in the opposite direction.

The term “racemic” refers to a mixture of equal parts of enantiomers and which mixture is optically inactive.

The term “absolute configuration” refers to the spatial arrangement of the atoms of a chiral molecular entity (or group) and its stereochemical description, e.g., R or S.

The stereochemical terms and conventions used in the specification are meant to be consistent with those described in Pure & Appl. Chem 68:2193 (1996), unless otherwise indicated.

The term “enantiomeric excess” or “ee” refers to a measure for how much of one enantiomer is present compared to the other. For a mixture of R and S enantiomers, the percent enantiomeric excess is defined as |R−S|*100, where R and S are the respective mole or weight fractions of enantiomers in a mixture such that R+S=1. With knowledge of the optical rotation of a chiral substance, the percent enantiomeric excess is defined as ([α]_obs/[α]_max)*100, where [α]_obs is the optical rotation of the mixture of enantiomers and [α]_max is the optical rotation of the pure enantiomer. Determination of enantiomeric excess is possible using a variety of analytical techniques, including NMR spectroscopy, chiral column chromatography or optical polarimetry.

The terms “enantiomerically pure” or “enantiopure” refer to a sample of a chiral substance all of whose molecules (within the limits of detection) have the same chirality sense.

The terms “enantiomerically enriched” or “enantioenriched” refer to a sample of a chiral substance whose enantiomeric ratio is greater than 50:50. Enantiomerically enriched compounds may be enantiomerically pure.

The terms “a” and “an” refer to one or more.

The term “about,” as used herein, includes the recited number±10%. Thus, “about 10” means 9 to 11.

The present disclosure encompasses the preparation and use of salts of the Compounds of the Disclosure, including non-toxic pharmaceutically acceptable salts. Examples of pharmaceutically acceptable addition salts include inorganic and organic acid addition salts and basic salts. The pharmaceutically acceptable salts include, but are not limited to, metal salts such as sodium salt, potassium salt, cesium salt and the like; alkaline earth metals such as calcium salt, magnesium salt and the like; organic amine salts such as triethylamine salt, pyridine salt, picoline salt, ethanolamine salt, triethanolamine salt, dicyclohexylamine salt, N,N′-dibenzylethylenediamine salt and the like; inorganic acid salts such as hydrochloride, hydrobromide, phosphate, sulphate and the like; organic acid salts such as citrate, lactate, tartrate, maleate, fumarate, mandelate, acetate, dichloroacetate, trifluoroacetate, oxalate, formate and the like; sulfonates such as methanesulfonate, benzenesulfonate, p-toluenesulfonate and the like; and amino acid salts such as arginate, asparaginate, glutamate and the like. The term “pharmaceutically acceptable salt” as used herein, refers to any salt, e.g., obtained by reaction with an acid or a base, of a Compound of the Disclosure that is physiologically tolerated in the target patient (e.g., a mammal, e.g., a human).

Acid addition salts can be formed by mixing a solution of the particular Compound of the Disclosure with a solution of a pharmaceutically acceptable non-toxic acid such as hydrochloric acid, fumaric acid, maleic acid, succinic acid, acetic acid, citric acid, tartaric acid, carbonic acid, phosphoric acid, oxalic acid, dichloroacetic acid, or the like. Basic salts can be formed by mixing a solution of the compound of the present disclosure with a solution of a pharmaceutically acceptable non-toxic base such as sodium hydroxide, potassium hydroxide, choline hydroxide, sodium carbonate and the like.

The present disclosure encompasses the preparation and use of solvates of Compounds of the Disclosure. Solvates typically do not significantly alter the physiological activity or toxicity of the compounds, and as such may function as pharmacological equivalents. The term “solvate” as used herein is a combination, physical association and/or solvation of a compound of the present disclosure with a solvent molecule such as, e.g. a desolvate, monosolvate or hemisolvate, where the ratio of solvent molecule to compound of the present disclosure is about 2:1, about 1:1 or about 1:2, respectively. This physical association involves varying degrees of ionic and covalent bonding, including hydrogen bonding. In certain instances, the solvate can be isolated, such as when one or more solvent molecules are incorporated into the crystal lattice of a crystalline solid. Thus, “solvate” encompasses both solution-phase and isolatable solvates. Compounds of the Disclosure can be present as solvated forms with a pharmaceutically acceptable solvent, such as water, methanol, ethanol, and the like, and it is intended that the disclosure includes both solvated and unsolvated forms of Compounds of the Disclosure. One type of solvate is a hydrate. A “hydrate” relates to a particular subgroup of solvates where the solvent molecule is water. Solvates typically can function as pharmacological equivalents. Preparation of solvates is known in the art. See, for example, M. Caira et al, J. Pharmaceut. Sci., 93(3):601-611 (2004), which describes the preparation of solvates of fluconazole with ethyl acetate and with water. Similar preparation of solvates, hemisolvates, hydrates, and the like are described by E. C, van Tonder et al., AAPS Pharm. Sci. Tech., 5(l):Article 12 (2004), and A. L. Bingham et al., Chem. Commun. 603-604 (2001). A typical, non-limiting, process of preparing a solvate would involve dissolving a Compound of the Disclosure in a desired solvent (organic, water, or a mixture thereof) at temperatures above 20° C. to about 25° C., then cooling the solution at a rate sufficient to form crystals, and isolating the crystals by known methods, e.g., filtration. Analytical techniques such as infrared spectroscopy can be used to confirm the presence of the solvent in a crystal of the solvate.

Since Compounds of the Disclosure are inhibitors of SMYD proteins, such as SMYD3 and SMYD2, a number of diseases, conditions, or disorders mediated by SMYD proteins, such as SMYD3 and SMYD2, can be treated by employing these compounds. The present disclosure is thus directed generally to a method for treating a disease, condition, or disorder responsive to the inhibition of SMYD proteins, such as SMYD3 and SMYD2, in an animal suffering from, or at risk of suffering from, the disorder, the method comprising administering to the animal an effective amount of one or more Compounds of the Disclosure.

The present disclosure is further directed to a method of inhibiting SMYD proteins in an animal in need thereof, the method comprising administering to the animal a therapeutically effective amount of at least one Compound of the Disclosure.

The present disclosure is further directed to a method of inhibiting SMYD3 in an animal in need thereof, the method comprising administering to the animal a therapeutically effective amount of at least one Compound of the Disclosure.

The present disclosure is further directed to a method of inhibiting SMYD2 in an animal in need thereof, the method comprising administering to the animal a therapeutically effective amount of at least one Compound of the Disclosure.

As used herein, the terms “treat,” “treating,” “treatment,” and the like refer to eliminating, reducing, or ameliorating a disease or condition, and/or symptoms associated therewith. Although not precluded, treating a disease or condition does not require that the disease, condition, or symptoms associated therewith be completely eliminated. As used herein, the terms “treat.” “treating.” “treatment,” and the like may include “prophylactic treatment,” which refers to reducing the probability of redeveloping a disease or condition, or of a recurrence of a previously-controlled disease or condition, in a subject who does not have, but is at risk of or is susceptible to, redeveloping a disease or condition or a recurrence of the disease or condition. The term “treat” and synonyms contemplate administering a therapeutically effective amount of a Compound of the Disclosure to an individual in need of such treatment.

Within the meaning of the disclosure, “treatment” also includes relapse prophylaxis or phase prophylaxis, as well as the treatment of acute or chronic signs, symptoms and/or malfunctions. The treatment can be orientated symptomatically, for example, to suppress symptoms. It can be effected over a short period, be oriented over a medium term, or can be a long-term treatment, for example within the context of a maintenance therapy.

The term “therapeutically effective amount” or “effective dose” as used herein refers to an amount of the active ingredient(s) that is(are) sufficient, when administered by a method of the disclosure, to efficaciously deliver the active ingredient(s) for the treatment of condition or disease of interest to an individual in need thereof. In the case of a cancer or other proliferation disorder, the therapeutically effective amount of the agent may reduce (i.e., retard to some extent and preferably stop) unwanted cellular proliferation; reduce the number of cancer cells; reduce the tumor size; inhibit (i.e., retard to some extent and preferably stop) cancer cell infiltration into peripheral organs; inhibit (i.e., retard to some extent and preferably stop) tumor metastasis; inhibit, to some extent, tumor growth; modulate protein methylation in the target cells; and/or relieve, to some extent, one or more of the symptoms associated with the cancer. To the extent the administered compound or composition prevents growth and/or kills existing cancer cells, it may be cytostatic and/or cytotoxic.

The term “container” means any receptacle and closure therefore suitable for storing, shipping, dispensing, and/or handling a pharmaceutical product.

The term “insert” means information accompanying a pharmaceutical product that provides a description of how to administer the product, along with the safety and efficacy data required to allow the physician, pharmacist, and patient to make an informed decision regarding use of the product. The package insert generally is regarded as the “label” for a pharmaceutical product.

The term “disease” or “condition” or “disorder” denotes disturbances and/or anomalies that as a rule are regarded as being pathological conditions or functions, and that can manifest themselves in the form of particular signs, symptoms, and/or malfunctions. As demonstrated below, Compounds of the Disclosure inhibit SMYD proteins, such as SMYD3 and SMYD2 and can be used in treating diseases and conditions such as proliferative diseases, wherein inhibition of SMYD proteins, such as SMYD3 and SMYD2 provides a benefit.

In some embodiments, the Compounds of the Disclosure can be used to treat a “SMYD protein mediated disorder” (e.g., a SMYD3-mediated disorder or a SMYD2-mediated disorder). A SMYD protein mediated disorder is any pathological condition in which a SMYD protein is know to play a role. In some embodiments, a SMYD-mediated disorder is a proliferative disease.

In some embodiments inhibiting SMYD proteins, such as SMYD3 and SMYD2, is the inhibition of the activity of one or more activities of SMYD proteins such as SMYD3 and SMYD2. In some embodiments, the activity of the SMYD proteins such as SMYD3 and SMYD2 is the ability of the SMYD protein such as SMYD3 or SMYD2 to transfer a methyl group to a target protein (e.g., histone). It should be appreciated that the activity of the one or more SMYD proteins such as SMYD3 and SMYD2 may be inhibited in vitro or in vivo. Examplary levels of inhibition of the activity one or more SMYD proteins such as SMYD3 and SMYD2 include at least 10% inhibition, at least 20% inhibition, at least 30% inhibition, at least 40% inhibition, at least 50% inhibition, at least 60% inhibition, at least 70% inhibition, at least 80% inhibition, at least 90%/0 inhibition, and up to 100% inhibition.

The SMYD (SET and MYND domain) family of lysine methyltransferases (KMTs) plays pivotal roles in various cellular processes, including gene expression regulation and DNA damage response. The family of human SMYD proteins consists of SMYD1, SMYD2, SMYD3. SMYD4 and SMYD5. SMYD1, SMYD2, and SMYD3 share a high degree of sequence homology and, with the exception of SMYD5, human SMYD proteins harbor at least one C-terminal tetratrico peptide repeat (TPR) domain. (See e.g., Abu-Farha et al. J Mol Cell Biol (2011) 3 (5) 301-308). The SMYD proteins have been found to be linked to various cancers (See e.g., Hamamoto et al. Nat Cell. Biol. 2004, 6: 731-740), Hu et al. Cancer Research 2009, 4067-4072, and Komatsu et al. Carcinogenesis 2009, 301139-1146.)

SMYD3 is a protein methyltransferase found to be expressed at high levels in a number of different cancers (Hamamoto, R., et al., Nat. Cell Biol., 6(8):731-40 (2004)). SMYD3 likely plays a role in the regulation of gene transcription and signal transduction pathways critical for survival of breast, liver, prostate and lung cancer cell lines (Hamamoto, R., et al., Nat. Cell Biol., 6(8):731-40 (2004); Hamamoto, R., et al., Cancer Sci., 97(2):113-8 (2006); Van Aller, G. S., et al., Epigenetics, 7(4):340-3 (2012); Liu, C., et al., J. Natl. Cancer Inst., 105(22):1719-28 (2013): Mazur, P. K., et al., Nature, 510(7504):283-7 (2014)).

Genetic knockdown of SMYD3 leads to a decrease in proliferation of a variety of cancer cell lines (Hamamoto, R., et al., Nat. Cell Biol., 6(8):731-40 (2004); Hamamoto. R., et al., Cancer Sci., 97(2):113-8 (2006); Van Aller, U.S., et al., Epigenetics, 7(4):340-3 (2012); Liu. C., et al., J. Natl. Cancer Inst., 105(22):1719-28 (2013); Mazur. P. K., et al., Nature, 510(7504):283-7 (2014)). Several studies employing RNAi-based technologies have shown that ablation of SMYD3 in hepatocellular carcinoma cell lines greatly reduces cell viability and that its pro-survival role is dependent on its catalytic activity (Hamamoto. R., et al., Nat. Cell Biol., 6(8):731-40 (2004); Van Aller, G. S., et al., Epigenetics, 7(4):340-3 (2012)). Moreover, SMYD3 has also been shown to be a critical mediator of transformation resulting from gain of function mutations in the oncogene, KRAS for both pancreatic and lung adenocarcinoma in mouse models. The dependence of KRAS on SMYD3 was also shown to be dependent on its catalytic activity (Mazur, P. K., et al., Nature, 510(7504):283-7 (2014)). SMYD3 function has also been implicated in colerectal cancers and RNAi mediated knockdown of SMYD3 has been shown to impair colerectal cell proliferation. (Peserico et al., Cell Physiol. 2015 Feb. 28. doi: 10.1002/jcp.24975. [Epub ahead of print]).

Furthermore. SMYD3 function has also been shown to play a role in immunology and development. For instance, de Almeida reported that SMYD3 plays a role in generation of inducible regulatory T cells (iTreg) cells. In a mouse model of respiratory syncytial virus (RSV) infection, a model in which iTreg cells have a critical role in regulating lung pathogenesis, SMYD3−/− mice demonstrated exacerbation of RSV-induced disease related to enhanced proinflammatory responses and worsened pathogenesis within the lung (de Almeida et al. Mucosal Immunol. 2015 Feb. 11. doi: 10.1038/mi.2015.4. [Epub ahead of print]). In addition, as to development, Proserpio et al. have shown the importance of SMYD3 in the regulation of skeletal muscle atrophy (Proserpio et al. Genes Dev. 2013 Jun. 1; 27(11):1299-312), while Fujii et al. have elucidated the role of SMYD3 in cardiac and skeletal muscle development (Fujii et al. PLoS One. 2011; 6(8):e23491).

SMYD2 (SET and MYND domain-containing protein 2) was first characterized as protein that is a member of a sub-family of SET domain containing proteins which catalyze the site-specific transfer of methyl groups onto substrate proteins. SMYD2 was initially shown to have methyltransferase activity towards lysine 36 on histone H3 (H3K36) but has subsequently been shown to have both histone and non-histone methyltrasferase activity.

SMYD2 has been implicated in the pathogenesis of multiple cancers. It has been shown to be over-expressed, compared to matched normal samples, in tumors of the breast, cervix, colon, kidney, liver, head and neck, skin, pancreas, ovary, esophagus and prostate, as well as hematologic malignancies such as AML, B- and T-ALL, CLL and MCL, suggesting a role for SMYD2 in the biology of these cancers. More specifically, studies using genetic knock-down of SMYD2 have demonstrated anti-proliferative effects in esophageal squamous cell carcinoma (ESCC), bladder carcinoma and cervical carcinoma cell lines. (See e.g., Komatsu et al., Carcinogenesis 2009, 30, 1139, and Cho et al., Neoplasia, 2012 June; 14(6):476-86). Moreover, high expression of SMYD2 has been shown to be a poor prognostic factor in both ESCC and pediatric ALL. (See e.g., Komatsu et al. Br J Cancer. 2015 Jan. 20; 112(2):357-64, and Sakamoto et al., Leuk Res. 2014 April; 38(4):496-502). Recently, Nguyen et al., have shown that a small molecule inhibitor of SMYD2 (LLY-507) inhibited the proliferation of several esophageal, liver and breast cancer cell lines in a dose-dependent manner. (Nguyen et al. J Bio Chem. 2015 Mar. 30, pii: jbc.M114.626861. [Epub ahead of print]).

SMYD2 has also been implicated in immunology. For instance, Xu et al. have shown that SMYD2 is a negative regulator of macrophage activation by suppressing Interleukin-6 and TNF-alpha production. (Xu et al., J Biol Chem. 2015 Feb. 27; 290(9):5414-23).

In one aspect, the present disclosure provides a method of treating cancer in a patient comprising administering a therapeutically effective amount of a Compound of the Disclosure. While not being limited to a specific mechanism, in some embodiments, Compounds of the Disclosure can treat cancer by inhibiting SMYD proteins, such as SMYD3 and SMYD2. Examples of treatable cancers include, but are not limited to, adrenal cancer, acinic cell carcinoma, acoustic neuroma, acral lentigious melanoma, acrospiroma, acute eosinophilic leukemia, acute erythroid leukemia, acute lymphoblastic leukemia, acute megakaryoblastic leukemia, acute monocytic leukemia, acute promyelocytic leukemia, adenocarcinoma, adenoid cystic carcinoma, adenoma, adenomatoid odontogenic tumor, adenosquamous carcinoma, adipose tissue neoplasm, adrenocortical carcinoma, adult T-cell leukemia/lymphoma, aggressive NK-cell leukemia, AIDS-related lymphoma, alveolar rhabdomyosarcoma, alveolar soft part sarcoma, ameloblastic fibroma, anaplastic large cell lymphoma, anaplastic thyroid cancer, angioimmunoblastic T-cell lymphoma, angiomyolipoma, angiosarcoma, astrocytoma, atypical teratoid rhabdoid tumor, B-cell chronic lymphocytic leukemia, B-cell prolymphocytic leukemia, B-cell lymphoma, basal cell carcinoma, biliary tract cancer, bladder cancer, blastoma, bone cancer, Brenner tumor, Brown tumor, Burkitt's lymphoma, breast cancer, brain cancer, carcinoma, carcinoma in situ, carcinosarcoma, cartilage tumor, cementoma, myeloid sarcoma, chondroma, chordoma, choriocarcinoma, choroid plexus papilloma, clear-cell sarcoma of the kidney, craniopharyngioma, cutaneous T-cell lymphoma, cervical cancer, colorectal cancer, Degos disease, desmoplastic small round cell tumor, diffuse large B-cell lymphoma, dysembryoplastic neuroepithelial tumor, dysgerminoma, embryonal carcinoma, endocrine gland neoplasm, endodermal sinus tumor, enteropathy-associated T-cell lymphoma, esophageal cancer, fetus in fetu, fibroma, fibrosarcoma, follicular lymphoma, follicular thyroid cancer, ganglioneuroma, gastrointestinal cancer, germ cell tumor, gestational choriocarcinoma, giant cell fibroblastoma, giant cell tumor of the bone, glial tumor, glioblastoma multiforme, glioma, gliomatosis cerebri, glucagonoma, gonadoblastoma, granulosa cell tumor, gynandroblastoma, gallbladder cancer, gastric cancer, hairy cell leukemia, hemangioblastoma, head and neck cancer, hemangiopericytoma, hematological malignancy, hepatoblastoma, hepatosplenic T-cell lymphoma, Hodgkin's lymphoma, non-Hodgkin's lymphoma, invasive lobular carcinoma, intestinal cancer, kidney cancer, laryngeal cancer, lentigo maligna, lethal midline carcinoma, leukemia, leydig cell tumor, liposarcoma, lung cancer, lymphangioma, lymphangiosarcoma, lymphoepithelioma, lymphoma, acute lymphocytic leukemia, acute myelogeous leukemia, chronic lymphocytic leukemia, liver cancer, small cell lung cancer, non-small cell lung cancer, MALT lymphoma, malignant fibrous histiocytoma, malignant peripheral nerve sheath tumor, malignant triton tumor, mantle cell lymphoma, marginal zone B-cell lymphoma, mast cell leukemia, mediastinal germ cell tumor, medullary carcinoma of the breast, medullary thyroid cancer, medulloblastoma, melanoma, meningioma, merkel cell cancer, mesothelioma, metastatic urothelial carcinoma, mixed Mullerian tumor, mucinous tumor, multiple myeloma, muscle tissue neoplasm, mycosis fungoides, myxoid liposarcoma, myxoma, myxosarcoma, nasopharyngeal carcinoma, neurinoma, neuroblastoma, neurofibroma, neuroma, nodular melanoma, ocular cancer, oligoastrocytoma, oligodendroglioma, oncocytoma, optic nerve sheath meningioma, optic nerve tumor, oral cancer, osteosarcoma, ovarian cancer, Pancoast tumor, papillary thyroid cancer, paraganglioma, pinealoblastoma, pineocytoma, pituicytoma, pituitary adenoma, pituitary tumor, plasmacytoma, polyembryoma, precursor T-lymphoblastic lymphoma, primary central nervous system lymphoma, primary effusion lymphoma, preimary peritoneal cancer, prostate cancer, pancreatic cancer, pharyngeal cancer, pseudomyxoma periotonei, renal cell carcinoma, renal medullary carcinoma, retinoblastoma, rhabdomyoma, rhabdomyosarcoma, Richter's transformation, rectal cancer, sarcoma. Schwannomatosis, seminoma, Sertoli cell tumor, sex cord-gonadal stromal tumor, signet ring cell carcinoma, skin cancer, small blue round cell tumors, small cell carcinoma, soft tissue sarcoma, somatostatinoma, soot wart, spinal tumor, splenic marginal zone lymphoma, squamous cell carcinoma, synovial sarcoma. Sezary's disease, small intestine cancer, squamous carcinoma, stomach cancer, T-cell lymphoma, testicular cancer, thecoma, thyroid cancer, transitional cell carcinoma, throat cancer, urachal cancer, urogenital cancer, urothelial carcinoma, uveal melanoma, uterine cancer, verrucous carcinoma, visual pathway glioma, vulvar cancer, vaginal cancer, Waldenstrom's macroglobulinemia, Warthin's tumor, and Wilms' tumor.

In another embodiment, the cancer is breast, cervix, colon, kidney, liver, head and neck, skin, pancreas, ovary, esophagus, or prostate cancer.

In another embodiment, the cancer is a hematologic malignancy such as acute myeloid leukemia (AML), B- and T-acute lymphoblastic leukemia (ALL), chronic lymphocytic leukemia (CLL), or mantle cell lymphoma (MCL).

In another embodiment, the cancer is esophageal squamous cell carcinoma (ESCC), bladder carcinoma, or cervical carcinoma.

In another embodiment, the cancer is a leukemia, for example a leukemia selected from acute monocytic leukemia, acute myelogenous leukemia, chronic myelogenous leukemia, chronic lymphocytic leukemia and mixed lineage leukemia (MLL). In another embodiment the cancer is NUT-midline carcinoma. In another embodiment the cancer is multiple myeloma. In another embodiment the cancer is a lung cancer such as small cell lung cancer (SCLC). In another embodiment the cancer is a neuroblastoma. In another embodiment the cancer is Burkitt's lymphoma. In another embodiment the cancer is cervical cancer. In another embodiment the cancer is esophageal cancer. In another embodiment the cancer is ovarian cancer. In another embodiment the cancer is colorectal cancer. In another embodiment, the cancer is prostate cancer. In another embodiment, the cancer is breast cancer.

In another embodiment, the present disclosure provides a therapeutic method of modulating protein methylation, gene expression, cell proliferation, cell differentiation and/or apoptosis in vivo in the cancers mentioned above by administering a therapeutically effective amount of a Compound of the Disclosure to a subject in need of such therapy.

Compounds of the Disclosure can be administered to a mammal in the form of a raw chemical without any other components present. Compounds of the Disclosure can also be administered to a mammal as part of a pharmaceutical composition containing the compound combined with a suitable pharmaceutically acceptable carrier. Such a carrier can be selected from pharmaceutically acceptable excipients and auxiliaries. The term “pharmaceutically acceptable carrier” or “pharmaceutically acceptable vehicle” encompasses any of the standard pharmaceutical carriers, solvents, surfactants, or vehicles. Suitable pharmaceutically acceptable vehicles include aqueous vehicles and nonaqueous vehicles. Standard pharmaceutical carriers and their formulations are described in Remington's Pharmaceutical Sciences, Mack Publishing Co., Easton, Pa., 19th ed. 1995.

Pharmaceutical compositions within the scope of the present disclosure include all compositions where a Compound of the Disclosure is combined with one or more pharmaceutically acceptable carriers. In one embodiment, the Compound of the Disclosure is present in the composition in an amount that is effective to achieve its intended therapeutic purpose. While individual needs may vary, a determination of optimal ranges of effective amounts of each compound is within the skill of the art. Typically, a Compound of the Disclosure can be administered to a mammal, e.g., a human, orally at a dose of from about 0.0025 to about 1500 mg per kg body weight of the mammal, or an equivalent amount of a pharmaceutically acceptable salt or solvate thereof, per day to treat the particular disorder. A useful oral dose of a Compound of the Disclosure administered to a mammal is from about 0.0025 to about 50 mg per kg body weight of the mammal, or an equivalent amount of the pharmaceutically acceptable salt or solvate thereof. For intramuscular injection, the dose is typically about one-half of the oral dose.

A unit oral dose may comprise from about 0.01 mg to about 1 g of the Compound of the Disclosure, e.g., about 0.01 mg to about 500 mg, about 0.01 mg to about 250 mg, about 0.01 mg to about 100 mg, 0.01 mg to about 50 mg, e.g., about 0.1 mg to about 10 mg, of the compound. The unit dose can be administered one or more times daily, e.g., as one or more tablets or capsules, each containing from about 0.01 mg to about 1 g of the compound, or an equivalent amount of a pharmaceutically acceptable salt or solvate thereof.

A pharmaceutical composition of the present disclosure can be administered to any patient that may experience the beneficial effects of a Compound of the Disclosure. Foremost among such patients are mammals, e.g., humans and companion animals, although the disclosure is not intended to be so limited. In one embodiment, the patient is a human.

A pharmaceutical composition of the present disclosure can be administered by any means that achieves its intended purpose. For example, administration can be by the oral, parenteral, subcutaneous, intravenous, intramuscular, intraperitoneal, transdermal, intranasal, transmucosal, rectal, intravaginal or buccal route, or by inhalation. The dosage administered and route of administration will vary, depending upon the circumstances of the particular subject, and taking into account such factors as age, gender, health, and weight of the recipient, condition or disorder to be treated, kind of concurrent treatment, if any, frequency of treatment, and the nature of the effect desired.

In one embodiment, a pharmaceutical composition of the present disclosure can be administered orally. In another embodiment, a pharmaceutical composition of the present disclosure can be administered orally and is formulated into tablets, dragees, capsules, or an oral liquid preparation. In one embodiment, the oral formulation comprises extruded multiparticulates comprising the Compound of the Disclosure.

Alternatively, a pharmaceutical composition of the present disclosure can be administered rectally, and is formulated in suppositories.

Alternatively, a pharmaceutical composition of the present disclosure can be administered by injection.

Alternatively, a pharmaceutical composition of the present disclosure can be administered transdermally.

Alternatively, a pharmaceutical composition of the present disclosure can be administered by inhalation or by intranasal or transmucosal administration.

Alternatively, a pharmaceutical composition of the present disclosure can be administered by the intravaginal route.

A pharmaceutical composition of the present disclosure can contain from about 0.01 to 99 percent by weight, e.g., from about 0.25 to 75 percent by weight, of a Compound of the Disclosure, e.g., about 1%, about 5%, about 10%, about 15%, about 20%, about 25%, about 30%, about 35%, about 40%, about 45%, about 50%, about 55%, about 60%, about 65%, about 70%, or about 75% by weight of a Compound of the Disclosure.

A pharmaceutical composition of the present disclosure is manufactured in a manner which itself will be known in view of the instant disclosure, for example, by means of conventional mixing, granulating, dragee-making, dissolving, extrusion, or lyophilizing processes. Thus, pharmaceutical compositions for oral use can be obtained by combining the active compound with solid excipients, optionally grinding the resulting mixture and processing the mixture of granules, after adding suitable auxiliaries, if desired or necessary, to obtain tablets or dragee cores.

Suitable excipients include fillers such as saccharides (for example, lactose, sucrose, mannitol or sorbitol), cellulose preparations, calcium phosphates (for example, tricalcium phosphate or calcium hydrogen phosphate), as well as binders such as starch paste (using, for example, maize starch, wheat starch, rice starch, or potato starch), gelatin, tragacanth, methyl cellulose, hydroxypropylmethylcellulose, sodium carboxymethylcellulose, and/or polyvinyl pyrrolidone. If desired, one or more disintegrating agents can be added, such as the above-mentioned starches and also carboxymethyl-starch, cross-linked polyvinyl pyrrolidone, agar, or alginic acid or a salt thereof, such as sodium alginate.

Auxiliaries are typically flow-regulating agents and lubricants such as, for example, silica, talc, stearic acid or salts thereof (e.g., magnesium stearate or calcium stearate), and polyethylene glycol. Dragee cores are provided with suitable coatings that are resistant to gastric juices. For this purpose, concentrated saccharide solutions can be used, which may optionally contain gum arabic, talc, polyvinyl pyrrolidone, polyethylene glycol and/or titanium dioxide, lacquer solutions and suitable organic solvents or solvent mixtures. In order to produce coatings resistant to gastric juices, solutions of suitable cellulose preparations such as acetylcellulose phthalate or hydroxypropylmethyl-cellulose phthalate can be used. Dye stuffs or pigments can be added to the tablets or dragee coatings, for example, for identification or in order to characterize combinations of active compound doses.

Examples of other pharmaceutical preparations that can be used orally include push-fit capsules made of gelatin, or soft, sealed capsules made of gelatin and a plasticizer such as glycerol or sorbitol. The push-fit capsules can contain a compound in the form of granules, which can be mixed with fillers such as lactose, binders such as starches, and/or lubricants such as talc or magnesium stearate and, optionally, stabilizers, or in the form of extruded multiparticulates. In soft capsules, the active compounds are preferably dissolved or suspended in suitable liquids, such as fatty oils or liquid paraffin. In addition, stabilizers can be added.

Possible pharmaceutical preparations for rectal administration include, for example, suppositories, which consist of a combination of one or more active compounds with a suppository base. Suitable suppository bases include natural and synthetic triglycerides, and paraffin hydrocarbons, among others. It is also possible to use gelatin rectal capsules consisting of a combination of active compound with a base material such as, for example, a liquid triglyceride, polyethylene glycol, or paraffin hydrocarbon.

Suitable formulations for parenteral administration include aqueous solutions of the active compound in a water-soluble form such as, for example, a water-soluble salt, alkaline solution, or acidic solution. Alternatively, a suspension of the active compound can be prepared as an oily suspension. Suitable lipophilic solvents or vehicles for such as suspension may include fatty oils (for example, sesame oil), synthetic fatty acid esters (for example, ethyl oleate), triglycerides, or a polyethylene glycol such as polyethylene glycol-400 (PEG-400). An aqueous suspension may contain one or more substances to increase the viscosity of the suspension, including, for example, sodium carboxymethyl cellulose, sorbitol, and/or dextran. The suspension may optionally contain stabilizers.

In another embodiment, the present disclosure provides kits which comprise a Compound of the Disclosure (or a composition comprising a Compound of the Disclosure) packaged in a manner that facilitates their use to practice methods of the present disclosure. In one embodiment, the kit includes a Compound of the Disclosure (or a composition comprising a Compound of the Disclosure) packaged in a container, such as a sealed bottle or vessel, with a label affixed to the container or included in the kit that describes use of the compound or composition to practice the method of the disclosure. In one embodiment, the compound or composition is packaged in a unit dosage form. The kit further can include a device suitable for administering the composition according to the intended route of administration.

General Synthesis of Compounds

Compounds of the Disclosure are prepared using methods known to those skilled in the art in view of this disclosure, or by the illustrative methods shown in the General Schemes below. In the General Schemes, R¹, R², R³, and Z of Formulae A-C are as defined in connection with Formula VII, unless otherwise indicated. In the General Schemes, suitable protecting can be employed in the synthesis, for example, when Z is (amino)alkyl or any other group that may require protection. (See, Wuts, P. G. M.; Greene, T. W., “Greene's Protective Groups in Organic Synthesis”, 4th Ed., J. Wiley & Sons, N Y, 2007).

Compound A is converted to compound B (i.e, a compound having Formula VII, wherein X is —S(═O)₂—) by coupling with a suitable sulfonyl chloride (Z—SO₂Cl) in the presence of a suitable base such as TEA or DIPEA in a suitable solvent such as dichloromethane, acetonitrile, or DMF.

Compound A was converted to compound C by coupling with a suitable carboxylic acid (ZCO₂H) in the presence of a suitable coupling reagent such as HATU or HOBT in the presence of a suitable base such as TEA or DIPEA in a suitable solvent such as DMF. Compound A can also be converted to compound C by coupling with a suitable acid chloride (ZCOCl) in the presence of a suitable base such as TEA or DIPEA in the presence of a suitable solvent such as dichloromethane, acetonitrile or DMF.

EXAMPLES

General Synthetic Methods

General methods and experimental procedures for preparing and characterizing compounds of Tables 1 and 2 are set forth in the general schemes above and the examples below. Wherever needed, reactions were heated using conventional hotplate apparatus or heating mantle or microwave irradiation equipment. Reactions were conducted with or without stirring, under atmospheric or elevated pressure in either open or closed vessels. Reaction progress was monitored using conventional techniques such as TLC, HPLC, UPLC, or LCMS using instrumentation and methods described below. Reactions were quenched and crude compounds isolated using conventional methods as described in the specific examples provided. Solvent removal was carried out with or without heating, under atmospheric or reduced pressure, using either a rotary or centrifugal evaporator.

Compound purification was carried out as needed using a variety of traditional methods including, but not limited to, preparative chromatography under acidic, neutral, or basic conditions using either normal phase or reverse phase HPLC or flash columns or Prep-TLC plates. Compound purity and mass confirmations were conducted using standard HPLC and/or UPLC and/or MS spectrometers and/or LCMS and/or GC equipment (i.e., including, but not limited to the following instrumentation: Waters Alliance 2695 with 2996 PDA detector connected with ZQ detector and ESI source: Shimadzu LDMS-2020; Waters Acquity H Class with PDA detector connected with SQ detector and ESI source; Agilent 1100 Series with PDA detector; Waters Alliance 2695 with 2998 PDA detector; AB SCIEX API 2000 with ESI source; Agilent 7890 GC).

Compound structure confirmations were carried out using standard 300 or 400 MHz NMR spectrometers with nOe's conducted whenever necessary.

The following abbreviations are used herein:

	Abbreviation	Meaning
	ACN	acetonitrile
	atm.	atmosphere
	DCM	dichloromethane
	DHP	dihydropyran
	DIBAL	diisobutyl aluminum hydride
	DIEA	diisopropyl ethylamine
	DMF	dimethyl formamide
	DMF-DMA	dimethyl formamide dimethyl
		acetal
	DMSO	dimethyl sulfoxide
	Dppf	1,1′-
		bis(diphenylphosphino)ferrocene
	EA	ethyl acetate
	ESI	electrospray ionization
	EtOH	Ethanol
	FA	formic acid
	GC	gas chromatography
	H	hour
	Hex	hexanes
	HMDS	hexamethyl disilazide
	HPLC	high performance liquid
		chromatography
	IPA	Isopropanol
	LCMS	liquid chromatography/mass
		spectrometry
	MeOH	Methanol
	Min	Minutes
	NBS	N-bromo succinimide
	NCS	N-chloro succinimide
	NIS	N-iodo succinimide
	NMR	nuclear magnetic resonance
	nOe	nuclear Overhauser effect
	Prep.	Preparative
	PTSA	para-toluene sulfonic acid
	Rf	retardation factor
	rt	room temperature
	RT	retention time
	sat.	Saturated
	SGC	silica gel chromatography
	TBAF	tetrabutyl ammonium fluoride
	TEA	Triethylamine
	TFA	trifluoroacetic acid
	THF	Tetrahydrofuran
	TLC	thin layer chromatography
	UPLC	ultra performance liquid
		chromatography

Example 1

Synthesis of 5-cyclopropylisoxazole-3-carboxylic Acid

Step 1: Synthesis of Ethyl 4-cyclopropyl-2,4-dioxobutanoate

Into a 10-L 3-necked round-bottom flask purged and maintained with an inert atmosphere of nitrogen Na (164 g, 1.20 equiv) was added in portions to ethanol (5 L). A solution of (CO₂Et)₂ (869 g, 1.00 equiv) and 1-cyclopropylethan-1-one (500 g, 5.94 mol, 1.00 equiv) was added dropwise with stirring at 0-20° C. The resulting solution was stirred for 1 h at 20-30° C. and then for an additional 1 h at 80° C. The resulting solution was diluted with 15 L of H₂O. The pH was adjusted to 2 with hydrochloric acid (12N). The resulting mixture was extracted with ethyl acetate and the organic layers combined and washed with NaHCO₃ (sat. aq.). The extract was concentrated under vacuum yielding 820 g (crude) of ethyl 4-cyclopropyl-2,4-dioxobutanoate as yellow oil. TLC (ethyl acetate/petroleum ether=1/5): Rf=0.5.

Step 2: Synthesis of Ethyl 5-cyclopropylisoxazole-3-carboxylate

Into a 10 L round-bottom flask, was placed a solution of ethyl 4-cyclopropyl-2,4-dioxobutanoate (177 g) in ethanol (1.1 L) and NH₂OH—HCl (200 g). The resulting solution was stirred for 1 h at 20-30° C. The resulting solution was allowed to react, with stirring, for an additional 1 h at 80° C. The resulting mixture was concentrated under vacuum. The residue was purified on a silica gel column with ethyl acetate/petroleum ether (1/10). This resulted in 143 g (the two step yield was 66.3%) of ethyl 5-cyclopropylisoxazole-3-carboxylate as a yellow oil. TLC (ethyl acetate/petroleum ether=1/5): Rf=0.2.

Step 3: Synthesis of 5-cyclopropylisoxazole-3-carboxylic Acid

Into a 10-L round-bottom flask was placed ethyl 5-cyclopropylisoxazole-3-carboxylate (280 g, 1.55 mol, 1.00 equiv) and a solution of sodium hydroxide (74.3 g, 1.20 equiv) in water (4 L). The resulting solution was stirred for 1 h at room temperature. The resulting mixture was washed with ether. The pH value of the aqueous solution was adjusted to 2-3 with hydrochloric acid (12N). The resulting solution was extracted with ethyl acetate and the organic layers combined and concentrated under vacuum. This resulted in 220 g (93%) of 5-cyclopropylisoxazole-3-carboxylic acid as an off-white solid. ¹H-NMR (300 MHz CDCl₃): δ 8.42 (brs, 1H), 6.37 (s, 1H), 2.16-2.05 (m, 1H), 1.29-1.12 (m, 2H), 1.12-0.99 (m, 2H): LCMS m/z=153.9 [M+H]⁻.

Example 2

Synthesis of 5-cyclopropylisoxazole-3-carbonyl Chloride

To a stirred solution of 5-cyclopropylisoxazole-3-carboxylic acid (0.750 g, 4.90 mmol) in DCM (5 ml) was added oxalyl chloride (1.68 ml, 19.60 mmol) and 2 drops of DMF. The reaction was stirred at RT 2 hr. After complete consumption of starting material, the solvent was removed under reduced pressure to obtain 5-cyclopropylisoxazole-3-carbonyl chloride as a residue (0.6 g, crude). The material was used without further purification.

Example 3

Synthesis of 5-cyclopropyl-N-(1-(piperidin-4-yl)ethyl)isoxazole-3-carboxamide hydrochloride (Cpd. No. 213

Step 1: Synthesis of Tert-Butyl 4-(methoxy(methyl)carbamoyl)piperidine-1-carboxylate

To a stirred solution of 1-(tert-butoxycarbonyl)piperidine-4-carboxylic acid (5.0 g, 21.7 mmol) in DMF (20 mL) was added HATU (12.39 g, 32.60 mmol) and diisopropylethylamine (18.94 ml, 108.6 mmol). The solution was stirred for 10 min at 0° C. After that N,O-dimethylhydroxylamine hydrochloride (2.12 g, 21.7 mmol) was added and stirred at RT for 2 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with water and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous Na₂SO₄ and concentrated under reduced pressure to obtain a crude residue which was purified by column chromatography to afford tert-butyl 4-(methoxy(methyl)carbamoyl)piperidine-1-carboxylate (4.3 g, 71%). LCMS: m/z=173.05 (M-Boc)⁺.

Step 2: Synthesis of Tert-Butyl 4-acetylpiperidine-1-carboxylate

To a stirred solution of tert-butyl 4-(methoxy(methyl)carbamoyl)piperidine-1-carboxylate (4.3 g, 15.8 mmol) in dry THF (20 mL) was added a solution of methyl magnesium bromide (20 mL, 23.71 mmol, 1.6 M in THF:toluene) at −78° C. and the reaction was stirred at −78° C. for 2 h and RT for 2 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with saturated NH₄Cl solution and extracted with ethyl acetate. The organic layer was washed with brine, dried over Na₂SO₄ and concentrated under reduced pressure to a crude residue which was purified by column chromatography to afford tert-butyl 4-acetylpiperidine-1-carboxylate (2.8 g, 62%).

Step 3: Synthesis of Tert-Butyl 4-(1-aminoethyl)piperidine-1-carboxylate

To a stirred solution of compound tert-butyl 4-acetylpiperidine-1- (2.8 g, 9.68 mmol) in dry MeOH (6 mL) was added ammonium acetate (8.9 g, 16.2 mmol) and the reaction was stirred at RT for 15 min, sodium cyanoborohydride (2.43 g, 38.7 mmol) was then added. The reaction mixture was heated to reflux for 16 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with 0.5 M NaOH solution and extracted with ethyl acetate. The organic layer was washed with brine, dried over Na₂SO₄ and concentrated under reduced pressure to obtain a residue of tert-butyl 4-(1-aminoethyl)piperidine-1-carboxylate (2.1 g, crude). This was used in the next step without further purification. LCMS: m/z=191.25 (M-Boc)⁺.

Step 4: Synthesis of Tert-Butyl 4-(1-(5-cyclopropylisoxazole-3-carboxamido)ethyl)piperidine-1-carboxylate

To a stirred solution of 5-cyclopropylisoxazole-3-carboxylic acid (1.0 g, 6.5 mmol) in DMF (3 mL) was added HATU (3.72 g, 9.8 mmol) and diisopropylethylamine (3.5 ml, 19.6 mmol). The solution was stirred for 10 min at 0° C. tert-Butyl 4-(1-aminoethyl)piperidine-1-carboxylate (1.45 g, 6.5 mmol) was added and the reaction stirred at RT for 2 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with water and extracted with ethyl acetate. The organic layer was separated, washed with brine, dried over anhydrous Na₂SO₄ and concentrated under reduced pressure to obtain a crude residue which was purified by column chromatography to afford compound tert-butyl 4-(1-(5-cyclopropylisoxazole-3-carboxamido)ethyl)piperidine-1-carboxylate (2.1 g, 84%). ¹H NMR (400 MHz, DMSO-d₆) δ 8.44 (d, J=8.9 Hz, 1H), 6.46 (s, 1H), 3.98-3.90 (m, 2H), 3.79 (p, J=7.3 Hz, 1H), 2.53-2.47 (m, 2H), 2.19-2.16 (m, 1H), 1.6-1.58 (m, 3H), 1.38 (s, 9H), 1.18-0.86 (m, 9H); LCMS: m/z=386.25 (M+H)⁺.

Step 5: Synthesis of 5-cyclopropyl-N-(1-(piperidin-4-yl)ethyl)isoxazole-3-carboxamide Hydrochloride

To a stirred solution of tert-butyl 4-(l-(5-cyclopropylisoxazole-3-carboxamido)ethyl)piperidine-1-carboxylate (2.1 g, 5.8 mmol) in dioxane (5 mL) was added 4 M dioxane:HCl (20 mL) at 0° C. and the reaction mixture was stirred at RT for 3 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the solvent was removed under reduced pressure to obtain a crude residue which was purified by repeated washing with ether and pentane to obtain 5-cyclopropyl-N-(1-(piperidin-4-yl)ethyl)isoxazole-3-carboxamide hydrochloride (1.3 g, 86%). ¹H NMR (400 MHz, DMSO-d₆) δ 8.95-8.86 (m, 1H), 8.54 (t, J=11.8 Hz, 2H), 6.49 (s, 1H), 3.91-3.77 (m, 1H), 3.24 (d, 0.1=12.4 Hz, 2H), 2.88-2.66 (m, 2H), 2.18 (tt, J=8.4, 5.0 Hz, 1H), 1.86-1.60 (m, 3H), 1.44-1.27 (m, 2H), 1.15-1.03 (m, 5H), 0.95-0.84 (m, 2H); LCMS: m/z=264.20 (M+H)⁺.

Example 4

Synthesis of 5-cyclopropyl-N-(phenyl(piperidin-4-yl)methyl)isoxazole-3-carboxamide (Cpd. No. 49

Step 1: Synthesis of Tert-Butyl 4-benzoylpiperidine-1-carboxylate

To a stirred solution of tert-butyl 4-(methoxy(methyl)carbamoyl)piperidine-1-carboxylate (0.5 g, 1.83 mmol) in THF (1.5 mL) was added a 1M solution of phenyl magnesium bromide in THF (3.67 mL, 3.67 mmol) at 0° C. The reaction was stirred overnight at RT. The reaction completion was monitored by TLC and the reaction was quenched with ammonium chloride solution and extracted with ethyl acetate. The organic layer was separated, washed with brine, dried using Na₂SO₄ and concentrated under reduced pressure to a residue. The residue was purified by column chromatography to obtain ten-butyl 4-benzoylpiperidine-1-carboxylate (0.188 g, 35.5%) LCMS: m/z=190.1 (M+H)⁺.

Step 2: Synthesis of Tert-Butyl 4-(amino(phenyl)methyl)piperidine-1-carboxylate

To a solution of tert-butyl 4-benzoylpiperidine-1-carboxylate (0.188 g, 0.65 mmol) in MeOH (5 mL) was added ammonium acetate (0.6 g, 7.8 mmol). The reaction was stirred for 10 minutes at 25° C., then sodium cyanoborohydride (0.163 g, 2.59 mmol) was added. The reaction heated to 60° C. for 16 hours. The reaction completion was monitored by TLC and the reaction was quenched with 0.5N NaOH solution and extracted with ethyl acetate. The organic layer was separated, washed with brine, dried using Na₂SO₄ and concentrated under reduced pressure to a residue which was purified by column chromatography to obtain tert-butyl 4-(amino(phenyl)methyl)piperidine-1-carboxylate (0.2 g, 40%). LCMS: m/z=190.3 (M+H)⁺.

Step 3: Synthesis of Tert-Butyl 4-((5-cyclopropylisoxazole-3-carboxamido)(phenyl)methyl)piperidine-1-carboxylate

To a stirred solution of 5-cyclopropylisoxazole-3-carboxylic acid (0.1 g, 0.34 mmol) in DCM (5 ml) was added oxalyl chloride (0.2 ml, 0.68 mmol) and 2 drops of DMF. The reaction was stirred at RT 2 hr. After complete consumption of starting material, the solvent was removed under reduced pressure to obtain a residue. The residue was dissolved in DCM and cooled to 0° C. tert-Butyl 4-(amino(phenyl)methyl)piperidine-1-carboxylate was added (0.070 g, 0.41 mmol) in DCM (5 mL) followed by triethylamine (0.23 mL, 0.17 mmol). The reaction was stirred at RT for 1 hr. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with sodium bicarbonate and, extracted with DCM. The organic layer was separated, washed with brine, dried using Na₂SO₄ and concentrated under reduced pressure to obtain a residue which was purified by column chromatography to obtain tert-butyl 4-((5-cyclopropylisoxazole-3-carboxamido)(phenyl)methyl)piperidine-1-carboxylate (0.057 g, 50%) LCMS: m/z=326.23 (M+H)⁺.

Step 4: Synthesis of 5-cyclopropyl-N-(phenyl(piperidin-4-yl)methyl)isoxazole-3-carboxamide Hydrochloride

To a stirred solution of tert-butyl 4-((5-cyclopropylisoxazole-3-carboxamido)(phenyl)methyl)piperidine-1-carboxylate (0.057 g, 0.13 mmol) in dioxane (1 mL) at 0° C. was added 4 M dioxane:HCl (2 mL). The reaction was stirred at rt for 2 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the solvent was removed under reduced pressure and the residue was purified by washing with ether and pentane to obtain 5-cyclopropyl-N-(phenyl(piperidin-4-yl)methyl)isoxazole-3-carboxamide hydrochloride (0.028 g, 65%). ¹H NMR (400 MHz, DMSO-d₆) δ 9.21 (d, J=9.0 Hz, 1H), 8.70 (d, J=11.2 Hz, 1H), 8.36 (d, J=11.7 Hz, 1H), 7.46-7.37 (m, 2H), 7.39-7.22 (m, 3H), 6.47 (s, 1H), 4.71 (t, J=9.5 Hz, 1H), 3.22-3.13 (m, 2H), 2.77 (q, J=11.0, 10.1 Hz, 2H), 2.23-2.03 (m, 3H), 1.47-1.19 (m, 3H), 1.14-1.02 (m, 2H), 0.94-0.83 (m, 2H); LCMS: m/z=326.25 (M+H).

Example 5

Synthesis of N-(1-(1-((S)-2-amino-3-(4-hydroxyphenyl)propanoyl)piperidin-4-yl)ethyl)-5-cyclopropylisoxazole-3-carboxamide (Cpd. No. 211

Step 1: Synthesis of Tert-Butyl ((2S)-1-(4-(1-(5-cyclopropylisoxazole-3-carboxamido)ethyl)piperidin-1-yl)-3-(4-hydroxyphenyl)-1-oxopropan-2-yl)carbamate

To a stirred solution of (S)-2-((tert-butoxycarbonyl)amino)-3-(4-hydroxyphenyl) propanoic acid (0.188 g, 0.68 mmol) in DMF (2 mL) was added EDCI (0.191 g, 1.10 mmol), HOBt (0.135 g, 1.10 mmol), and triethylamine (0.3 mL, 2.27 mmol). The solution was stirred for 30 min at 0° C. 5-Cyclopropyl-N-(1-(piperidin-4-yl)ethyl)isoxazole-3-carboxamide hydrochloride (0.2 g, 0.66 mmol) was then added and the reaction stirred at rt overnight. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with water and extracted with ethyl acetate. The organic layer was separated, washed with brine, dried over anhydrous Na₂SO₄ and concentrated under reduced pressure to obtain a crude residue which was purified by column chromatography to afford tert-butyl ((2S)-1-(4-(1-(5-cyclopropylisoxazole-3-carboxamido)ethyl)piperidin-1-yl)-3-(4-hydroxyphenyl)-1-oxopropan-2-yl)carbamate (0.09 g, 25%). LCMS: m/z=428.05 (M-Boc)⁺.

Step 2: Synthesis of N-1-(1-((S)-2-amino-3-(4-hydroxyphenyl)propanoyl)piperidin-4-yl)ethyl)-5-cyclopropylisoxazole-3-carboxamide Hydrochloride

To a stirred solution of tert-butyl ((2S)-1-(4-(1-(5-cyclopropylisoxazole-3-carboxamido)ethyl)piperidin-1-yl)-3-(4-hydroxyphenyl)-1-oxopropan-2-yl)carbamate (0.09 g, 0.17 mmol) in dioxane (1 mL) was added 4 M dioxane:HCl (5 mL) at 0° C. and the reaction mixture stirred at rt for 3 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the solvent was removed under reduced pressure to obtain a crude residue which was purified by repeated washing with ether and pentane to obtain N-(1-((S)-2-amino-3-(4-hydroxyphenyl)propanoyl)piperidin-4-yl)ethyl)-5-cyclopropylisoxazole-3-carboxamide hydrochloride (0.020 g, 28%). ¹H NMR (400 MHz, DMSO-d₆) δ 9.44-9.35 (m, 1H), 8.46 (q, J=7.3 Hz, 1H), 8.12 (s, 3H), 6.99 (dd, J=173, 7.9 Hz, 2H), 6.75-6.66 (m, 2H), 6.46 (d, J=3.5 Hz, 1H), 4.52 (p, J=6.8, 6.2 Hz, 1H), 4.37 (d, J=12.8 Hz, 1H), 3.83-3.59 (m, 2H), 2.96-2.73 (m, 2H), 2.47-2.33 (m, 2H), 2.27-2.12 (m, 1H), 1.76-1.62 (m, 1H), 1.62-1.35 (m, 2H), 1.14-0.81 (m, 9H); LCMS: m/z=427.35 (M+H)⁺.

Example 6

Synthesis N—((S)-(1-((S)-2-aminopropanoyl)piperidin-4-yl)(phenyl)methyl)-5-cyclopropylisoxazole-3-carboxamide Hydrochloride (Cpd. No. 215) and N—((R)-(1-((S)-2-aminopropanoyl)piperidin-4-yl)(phenyl)methyl)-5-cyclopropylisoxazole-3-carboxamide Hydrochloride (Cpd. No. 216

Step 1: Synthesis of tert-butyl ((S)-1-(4-((S)-(5-cyclopropylisoxazole-3-carboxamido)(phenyl)methyl)piperidin-1-yl)-1-oxopropan-2-yl)carbamate and tert-butyl ((S)-1-(4-((R)-(5-cyclopropylisoxazole-3-carboxamido)(phenyl)methyl)piperidin-1-yl)-1-oxopropan-2-yl)carbamate

To a stirred solution of (S)-2-((tert-butoxycarbonyl)amino)propanoic acid (0.044 g, 0.230 mmol) in DMF (1 mL) was added HATU (0.131 g, 0.34 mmol) and diisopropyl ethylamine (0.12 mL, 0.69 mmol). The solution was stirred for 10 min at 0° C. Next, 5-cyclopropyl-N-(phenyl(piperidin-4-yl)methyl)isoxazole-3-carboxamide ((0.1 g, 0.277 mmol) was added and the reaction stirred at rt for 2 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with water and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous Na₂SO₄ and concentrated under reduced pressure to obtain a crude residue which was purified by preparative chiral HPLC to afford tert-butyl ((S)-1-(4-((S)-(5-cyclopropylisoxazole-3-carboxamido)(phenyl)methyl)piperidin-1-yl)-1-oxopropan-2-yl)carbamate (0.13 g, 18%) and tert-butyl ((S)-1-(4-((R)-(5-cyclopropylisoxazole-3-carboxamido)(phenyl)methyl)piperidin-1-yl)-1-oxopropan-2-yl)carbamate (0.12 g, 17.4%).

Step 2: Synthesis of N—((S)-(1-((S)-2-aminopropanoyl)piperidin-4-yl)(phenyl)methyl)-5-cyclopropylisoxazole-3-carboxamide Hydrochloride

To a stirred solution of tert-butyl ((S)-1-(4-(5)-5-cyclopropylisoxazole-3-carboxamido)(phenyl)methyl)piperidin-1-yl)-1-oxopropan-2-yl)carbamate (0.05 g, 0.126 mmol) in dioxane (1 mL) at 0° C. was added 4 M dioxane:HCl (3 mL). The reaction mixture was stirred at RT for 1 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material the solvent was removed under reduced pressure to obtain a crude residue. The material was purified by repeated washing with ether and pentane to obtain N—((S)-(1-((S)-2-aminopropanoyl)piperidin-4-yl)(phenyl)methyl)-5-cyclopropylisoxazole-3-carboxamide hydrochloride (0.035 g, 50%). ¹H NMR (400 MHz, DMSO-d₆): δ 9.19 (dd. J=9.0, 6.3 Hz, 1H), 8.09 (s, 3H), 7.44-7.21 (m, 5H), 6.46 (s, 1H), 4.69 (q, J=10.0 Hz, 1H), 4.29 (s, 2H), 3.76 (d, J=13.7 Hz, 1H), 2.98-2.96 (m, 1H), 2.66-2.50 (m, 1H), 2.23-2.06 (m, 2H), 2.02-1.91 (m, 1H), 1.30 (d, J=6.8 Hz, 1H), 1.21 (dd, J=24.0, 9.9 Hz, 4H), 1.14-0.83 (m, 5H); LCMS: m/z=397.35 (M+H)⁺.

Step 2: Synthesis of N—((R)-(1-((S)-2-aminopropanoyl)piperidin-4-yl)(phenyl)methyl)-5-cyclopropylisoxazole-3-carboxamide Hydrochloride

To a stirred solution of tert-butyl ((S)-1-(4-((R)-(5-cyclopropylisoxazole-3-carboxamido)(phenyl)methyl)piperidin-1-yl)-1-oxopropan-2-yl)carbamate (0.06 g, 0.12 mmol) in dioxane (1 mL) at 0° C. was added 4 M dioxane:HCl (3 mL). The reaction mixture was stirred at RT for 1 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material the solvent was removed under reduced pressure to obtain a crude residue. The material was purified by repeated washing with ether and pentane to obtain N—(R)-(1-((S)-2-aminopropanoyl)piperidin-4-yl)(phenyl)methyl)-5-cyclopropylisoxazole-3-carboxamide (0.02 g, 30%). ¹H NMR (400 MHz, DMSO-d₆): δ 9.20 (t, J=8.8 Hz, 1H), 8.08 (s, 3H), 7.46-7.21 (m, 5H), 6.46 (d, J 1.5 Hz, 1H), 4.7-4.68 (m, 1H), 4.35-4.32 (m, 2H), 3.90 (d, J=13.7 Hz, 1H), 3.07-2.87 (m, 1H), 2.66-2.51 (m, 1H), 2.23-2.06 (m, 2H), 1.95 (d, J=11.4 Hz, 1H), 1.36-1.00 (m, 8H), 1.01-0.82 (m, 2H); LCMS: m/z=397.22 (M+H)⁺.

Example 7

Synthesis of N-((1-((S)-2-aminopropanoyl)piperidin-4-yl)(3-(pyridin-3-ylcarbamoyl)phenyl)methyl)-5-cyclopropylisoxazole-3-carboxamide Hydrochloride (Cpd. No. 205

Step 1: Synthesis of Tert-Butyl 4-(hydroxy(3-(methoxycarbonyl)phenyl)methyl) piperidine-1-carboxylate

To a stirred solution of methyl 3-iodobenzoate (3.0 g, 11.45 mmol) in anhydrous THF (100 mL) was added isopropyl magnesium chloride (6.27 mL, 12.59 mmol, 2M solution in THF) at −40° C., tert-Butyl 4-formylpiperidine-1-carboxylate (2.68 g, 12.59 mmol) was added. The reaction was stirred at rt overnight. The reaction was quenched with saturated NH₄Cl solution and extracted with ethyl acetate. The organic layer was washed with brine, dried over Na₂SO₄ and concentrated under reduced pressure to obtain a crude residue which was purified by column chromatography to afford tert-butyl 4-(hydroxy(3-(methoxycarbonyl)phenyl)methyl)piperidine-1-carboxylate (2.91 g, 73%). LCMS: m/z=350.15 (M+H)⁺.

Step 2: Synthesis of tert-butyl 4-(3-(methoxycarbonyl)benzoyl)piperidine-1-carboxylate

To a stirred solution of 4-(hydroxy(3-(methoxycarbonyl)phenyl) methyl)piperidine-1-carboxylate (1.9 g, 5.44 mmol) in DCM (30 mL) was added Dess Martin periodane (3.0 g, 7.07 mmol) at 0° C. The reaction mixture was stirred at rt for 1 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched by the addition of a mixture of saturated solution of Na₂S₂O₃ (10 mL) and NaHCO₃ (10 mL). The organic layer was extracted, dried over anhydrous Na₂SO₄, concentrated under reduced pressure to obtain a crude residue which was purified by column chromatography to afford tert-butyl 4-(3-(methoxycarbonyl)benzoyl)piperidine-1-carboxylate (1.78 g, 94%). LCMS: m/z=348.15 (M+H)⁺.

Step 3: Synthesis of Tert-Butyl 4-(amino(3-(methoxycarbonyl)phenyl)methyl)piperidine-1-carboxylate

To a stirred solution of tert-butyl 4-(3-(methoxycarbonyl)benzoyl)piperidine-1-carboxylate (1.5 g, 4.32 mmol) in methanol (30 mL) at 0° C. was added ammonium acetate (4.0 g, 51.8 mmol) followed by portionwise addition of sodium cyanoborohydride (1.0 g, 17.2 mmol). The reaction mixture was heated to reflux at 80° C. for 12 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with dilute HCl solution and extracted with ethyl acetate. The organic layer was separated, washed with brine, dried over Na₂SO₄ and concentrated under reduced pressure to obtain a crude residue which was purified by column chromatography to afford tert-butyl 4-(amino(3-(methoxycarbonyl)phenyl)methyl)piperidine-1-carboxylate (1.05 g, 70%).

Step 4: Synthesis of tert-butyl 4-((5-cyclopropylisoxazole-3-carboxamido)(3-(methoxycarbonyl)phenyl)methyl)piperidine-1-carboxylate

To a stirred solution of 5-cyclopropylisoxazole-3-carboxylic acid (0.65 g, 1.86 mmol) in DMF (10 mL) was added HATU (1.0 g, 2.8 mmol) and diisopropylethylamine (1.2 ml, 7.44 mmol). The reaction mixture was stirred for 10 min at 0° C. and then tert-butyl 4-(amino(3-(methoxycarbonyl)phenyl)methyl)piperidine-1-carboxylate (0.284 g, 1.86 mmol) was added. The reaction mixture was stirred at rt for 2 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with water and extracted with ethyl acetate. The organic layer was separated, washed with brine, dried over Na₂SO₄ and concentrated under reduced pressure to obtain a crude residue which was purified by column chromatography to afford tert-butyl 4-((5-cyclopropylisoxazole-3-carboxamido)(3-(methoxycarbonyl) phenyl)methyl)piperidine-1-carboxylate (0.789 g, 95%).

Step 5: Synthesis of 3-((1-(tert-butoxycarbonyl)piperidin-4-yl)(5-cyclopropylisoxazole-3-carboxamido)methyl)benzoic Acid

To a stirred solution of tert-butyl 4-((5-cyclopropylisoxazole-3-carboxamido)(3-(methoxycarbonyl)phenyl)methyl)piperidine-1-carboxylate (0.77 g, 1.59 mmol) in THF:MeOH:H₂O (1:1:1, 15 mL) was added lithium hydroxide (0.133 g, 3.18 mmol). The reaction mixture was then stirred at rt for 12 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material the solvent was removed under reduced pressure to obtain a crude residue. The residue was taken up in MeOH and acidified with dilute HCl to pH=2. The reaction mixture was filtered and the filtrate was concentrated under reduced pressure to obtain 3-((l-(ten-butoxycarbonyl)piperidin-4-yl)(5-cyclopropylisoxazole-3-carboxamido)methyl)benzoic acid (0.580 g, crude).

Step 6: Synthesis of Tert-Butyl 4-((5-cyclopropylisoxazole-3-carboxamido)(3-(pyridin-3-ylcarbamoyl)phenyl)methyl)piperidine-1-carboxylate

To a stirred solution of 3-((1-(tert-butoxycarbonyl)piperidin-4-yl)(5-cyclopropylisoxazole-3-carboxamido)methyl)benzoic acid (0.5 g, 1.06 mmol) in DMF (3 mL) was added HATU (0.607 g, 1.59 mmol) and diisopropylethylamine (0.63 mL, 3.73 mmol). The solution was stirred for 10 min at 0° C. Then pyridin-3-amine (0.14 g, 1.49 mmol) was added and stirred at rt for 2 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with water and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous Na₂SO₄ and concentrated under reduced pressure to obtain a crude residue which was purified by column chromatography to afford tert-butyl-4-((5-cyclopropylisoxazole-3-carboxamido)(3-(pyridin-3-ylcarbamoyl)phenyl)methyl)piperidine-1-carboxylate (0.445 g, 76%). LCMS: m/z=446.4 (M-Boc)⁻.

Step 7: Synthesis of 5-cyclopropyl-N-(piperidin-4-yl(3-(pyridin-3-ylcarbamoyl)phenyl)methyl)isoxazole-3-carboxamide Hydrochloride

To a stirred solution of tert-butyl-4-((5-cyclopropylisoxazole-3-carboxamido)(3-(pyridin-3-ylcarbamoyl)phenyl)methyl)piperidine-1-carboxylate (0.445 g, 0.81 mmol) in dioxane (4 mL) at 0° C. was added 4 M dioxane:HCl (8 mL) and the reaction mixture stirred at rt for 3 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material the solvent was removed under reduced pressure to obtain a crude residue which was purified by repeated washing with ether and pentane to obtain 5-cyclopropyl-N-(piperidin-4-yl(3-(pyridin-3-ylcarbamoyl)phenyl)methyl) isoxazole-3-carboxamide hydrochloride (0.380 g, 96%). LCMS: m/z=446.25 (M+H)⁺.

Step 8: Synthesis of Tert-butyl ((2S)-1-(4-((5-cyclopropylisoxazole-3-carboxamido)(3-(pyridin-3-ylcarbamoyl)phenyl)methyl)piperidin-1-yl)-1-oxopropan-2-yl)carbamate

To a stirred solution of (S)-2-((tert-butoxycarbonyl)amino)propanoic acid (0.089 g, 0.474 mmol) in DMF (3 mL) was added HATU (0.225 g, 0.592 mmol) and diisopropylethylamine (0.23 mL, 1.38 mmol). The solution was stirred for 10 min at 0° C. Next 5-cyclopropyl-N-(piperidin-4-yl(3-(pyridin-3-ylcarbamoyl)phenyl)methyl) isoxazole-3-carboxamide hydrochloride (0.19 g, 0.395 mmol) was added and the reaction stirred at rt for 2 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with water and extracted with ethyl acetate. The organic layer was separated, washed with brine, dried over anhydrous Na₂SO₄ and concentrated under reduced pressure to obtain a crude residue which was purified by column chromatography to afford tert-butyl ((2S)-1-(4-((5-cyclopropylisoxazole-3-carboxamido)(3-(pyridin-3-ylcarbamoyl)phenyl)methyl)piperidin-1-yl)-1-oxopropan-2-yl)carbamate (0.170 g, 83%). LCMS: m/z=517.4 (M-Boc)⁺.

Step 9: Synthesis of N-((1-((S)-2-aminopropanoyl)piperidin-4-yl)(3-(pyridin-3-ylcarbamoyl)phenyl)methyl)-5-cyclopropylisoxazole-3-carboxamide Hydrochloride

To a stirred solution of tert-butyl ((2S)-1-(4-((5-cyclopropylisoxazole-3-carboxamido)(3-(pyridin-3-ylcarbamoyl)phenyl methyl)piperidin-1-yl)-1-oxopropan-2-yl)carbamate (0.170 g, 0.275 mmol) in dioxane (3 mL) at 0° C. was added 4 M dioxane:HCl (2 mL) and the reaction mixture stirred at rt for 3 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material the solvent was removed under reduced pressure to obtain a crude residue which was purified by repeated washing with ether and pentane to obtain N-((1-((S)-2-aminopropanoyl)piperidin-4-yl)(3-(pyridin-3-ylcarbamoyl)phenyl)methyl)-5-cyclopropylisoxazole-3-carboxamide hydrochloride (0.135 g, 83%). ¹H NMR (400 MHz. DMSO-d₆)(mixture of diastereomers): δ 11.09 (d, J=14.5 Hz, 1H), 9.38-9.24 (m, 2H), 8.64 (d, 0.1=8.0 Hz, 1H), 8.55 (dd, J=5.4, 1.4 Hz, 1H), 8.17-8.09 (m, 4H), 8.03-7.94 (m, 1H), 7.84 (dd, J=8.4, 5.2 Hz, 1H), 7.71 (dd, J=7.7, 5.0 Hz, 1H), 7.56 (td, J=7.7, 4.2 Hz, 1H), 6.51 (d, J=3.7 Hz, 1H), 4.90-4.74 (m, 1H), 4.48-4.32 (m, 1H), 4.35-4.23 (m, 2H), 3.92 (d, J=13.6 Hz, 1H), 3.79 (dd, J=13.8, 9.2 Hz, 1H), 3.69-3.53 (m, 1H), 3.18-2.91 (m, 211), 2.67-2.51 (m, 211), 2.19-2.17 (m, 311), 1.97 (d, J=12.6 Hz, 111), 1.35-0.97 (m, 2H), 0.95-0.82 (m, 2H); LCMS: m/z=517.35 (M+H)⁺.

Example 8

Synthesis of 5-cyclopropyl-N-(piperidin-4-ylmethyl)isoxazole-3-carboxamide Hydrochloride (Cpd. No. 4)

Step 1: Synthesis of Tert-Butyl 4-((5-cyclopropylisoxazole-3-carboxamido)methyl) piperidine-1-carboxylate

To a stirred solution of tert-butyl 4-(aminomethyl)piperidine-1-carboxylate (0.514 g, 2.43 mmol) in DCM (10 mL) was added triethylamine (0.68 mL, 4.87 mmol) and the solution was stirred at 0° C. for 10 min. 5-Cyclopropylisoxazole-3-carbonyl chloride (0.6 g, 3.166 mmol) in DCM (5 mL) was added dropwise and the reaction mixture stirred at rt overnight. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was diluted with excess of DCM and washed with water and, the organic layer was separated, washed with brine, dried using Na₂SO₄ and concentrated under reduced pressure to obtain a residue which was purified by column chromatography to afford tert-butyl 4-((5-cyclopropylisoxazole-3-carboxamido)methyl)piperidine-1-carboxylate (0.750 g, 89%). ¹H NMR (DMSO-d₆, 400 MHz) δ 8.69-8.66 (t, J=5.8 Hz, 1H) 6.46 (s, 1H), 3.90 (d, J=12.4 Hz, 2-), 3.11-3.08 (m, J=6.4 Hz, 2H), 2.67 (brs, 2H), 2.19-2.15 (m, 1H), 1.70-1.68 (m, 1H), 1.6 (brs, 1H), 1.58 (brs, 1H), 1.38 (s, 9H), 1.11-1.06 (m, 2H), 0.90-0.89 (m, 4H).

Step 2: Synthesis of 5-cyclopropyl-N-(piperidin-4-ylmethyl)isoxazole-3-carboxamide Hydrochloride

To a stirred solution of tert-butyl 4-((5-cyclopropylisoxazole-3-carboxamido)methyl)piperidine-1-carboxylate (0.750 g, 2.148 mmol) in MeOH (4 mL) at 0° C. was added 4 M methanolic HCl (6 mL). The reaction was stirred at rt for 16 hours. The progress of the reaction was monitored by TLC. After complete consumption of starting material the solvent was removed under reduced pressure and the residue was washed with DCM and hexanes to obtain 5-cyclopropyl-N-(piperidin-4-ylmethyl)isoxazole-3-carboxamide hydrochloride (0.590 g, 96%). ¹H NMR (400 MHz, DMSO-d₆) δ 8.88 (s, 1H), 8.78 (t, J=6.1 Hz, 1H), 8.59 (m, 1H), 6.49 (s, 1H), 3.27-3.09 (m, 4H), 2.80 (q, J=11.8 Hz, 2H), 2.18 (m, 1H), 1.79 (m, 3H), 1.41-1.26 (m, 2H), 1.09 (m, 2H), 1.00-0.87 (m, 2H); LCMS: m/z=250.05 (M+H).

Example 9

Synthesis of (S)—N-((1-(2-amino-3-methylbutanoyl)piperidin-4-yl)methyl)-5-cyclopropylisoxazole-3-carboxamide Hydrochloride (Cpd. No. 226)

Step 1: Synthesis of (S)-tert-butyl (1-(4-((5-cyclopropylisoxazole-3-carboxamido)methyl)piperidin-1l-yl)-3-methyl-1-oxobutan-2-yl)carbamate

To a stirred solution of (S)-2-((tert-butoxycarbonyl)amino)-3-methylbutanoic acid (0.156 g, 0.72 mmol) in DMF (2 mL) was added EDCI (0.172 g, 0.9 mmol), HOBt (0.121 g, 0.9 mmol), and triethylamine (0.3 mL, 1.8 mmol). The solution was stirred for 30 min at 0° C. 5-Cyclopropyl-N-(piperidin-4-ylmethyl)isoxazole-3-carboxamide (0.15 g, 0.6 mmol) was added and the reaction stirred at rt overnight. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with water and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous Na₂SO₄ and concentrated under reduced pressure to obtain a crude residue which was purified by column chromatography to afford (S)-tert-butyl (1-(4-((5-cyclopropylisoxazole-3-carboxamido)methyl)piperidin-1-yl)-3-methyl-1-oxobutan-2-yl)carbamate (0.185 g, 68%). LCMS m/z=349.1 (M-Boc)⁺.

Step 2: Synthesis of (S)—N-((1-(2-amino-3-methylbutanoyl)piperidin-4-yl)methyl)-5-cyclopropylisoxazole-3-carboxamide Hydrochloride

To a stirred solution of (S)-tert-butyl (1-(4-((5-cyclopropylisoxazole-3-carboxamido)methyl)piperidin-1-yl)-3-methyl-1-oxobutan-2-yl)carbamate (0.185 g, 0.33 mmol) in dioxane (1 mL) at 0° C. was added 4M dioxane:HCl (3 mL). The reaction mixture was stirred at rt for 3 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material the solvent was removed under reduced pressure to obtain a crude residue. The material was purified by repeated washing with ether and pentane to obtain (S)—N—((-(2-amino-3-methylbutanoyl)piperidin-4-yl)methyl)-5-cyclopropylisoxazole-3-carboxamide hydrochloride (0.1 g, 69%). ¹H NMR (400 MHz. DMSO-d₆): δ 8.75 (dt, J=7.1, 3.4 Hz, 1H), 8.03 (s, 3H), 6.48 (s, 1H), 4.43-4.31 (m, 1H), 4.27 (s, 1H), 3.93 (d, J=13.6 Hz, 1H), 3.21-2.97 (m, 3H), 2.66-2.53 (m, 1H), 2.18 (tt, J=8.4, 5.0 Hz, 1H), 2.01 (h, J=6.9 Hz, 1H), 1.89-1.78 (m, 1H), 1.70 (t, J=12.7 Hz, 1H), 1.26 (dd, J=10.3, 4.4 Hz, 1H), 1.16-0.82 (m, 12H); LCMS: m/z=349.3 (M+H)⁺.

Example 10

Synthesis of N-(4-(1-amino-3-(pyridin-3-yl)propyl)phenyl)-5-cyclopropylisoxazole-3-carboxamide (Cpd. No. 149)

Step 1: Synthesis of (E)-1-(4-aminophenyl)-3-(pyridin-3-yl)prop-2-en-1-one

To a stirred solution of 1-(4-aminophenyl)ethanone (2.0 g, 14.81 mmol) in MeOH:Water (1:1, 30 mL) was added nicotinaldehyde (1.58 g, 14.81 mmol) and potassium hydroxide (1.24 g, 22.22 mmol). The reaction mixture was stirred at rt for 12 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with dilute HCl and extracted with ethyl acetate. The organic layer was separated, washed with brine, dried over anhydrous Na₂SO₄ and concentrated under reduced pressure to obtain a crude residue which was purified by column chromatography to afford (E)-1-(4-aminophenyl)-3-(pyridin-3-yl)prop-2-en-1-one (2.0 g, 60%). LCMS: m/z=225.3 (M+H)⁺.

Step 2. Synthesis of 1-(4-aminophenyl)-3-(pyridin-3-yl)propan-1-one

To a stirred solution of (E)-1-(4-aminophenyl)-3-(pyridin-3-yl)prop-2-en-1-one (2.0 g, 8.9 mmol) in methanol (20 mL), 10% palladium-carbon (0.2 g) was added and the reaction mixture stirred under hydrogen atmosphere at 1 atm pressure at rt for 3 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction mixture was filtered through a pad of Celite and the filtrate was concentrated under reduced pressure to obtain a crude residue of 1-(4-aminophenyl)-3-(pyridin-3-yl)propan-1-one (1.5 g) which was used in the next step without purification. LCMS: m/z=227.05 (M+H)⁺.

Step 3: Synthesis of 5-cyclopropyl-N-(4-(3-(pyridin-3-yl)propanoyl)phenyl)isoxazole-3-carboxamide

To a stirred solution of 5-cyclopropylisoxazole-3-carboxylic acid (0.2 g, 1.3 mmol) and 2 drops of DMF in DCM (10 mL) was added oxalyl chloride (1 mL). The reaction mixture was stirred at rt for 2 h. After complete consumption of starting material, the solvent was removed under reduced pressure to obtain a crude residue. The residue was redissolved in DCM (5 mL). Triethylamine (0.35 mL, 2.61 mmol) and a solution of 1-(4-aminophenyl)-3-(pyridin-3-yl)propan-1-one (0.354 g, 1.56 mmol) in DCM (1 mL) was added at 0° C. to the reaction mixture. The mixture was stirred at rt for 1 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction mixture was quenched with saturated NaHCO₃ solution and extracted with DCM. The organic layer was separated, washed with brine, dried over Na₂SO₄ and concentrated under reduced pressure to obtain a crude residue which was purified by column chromatography to afford 5-cyclopropyl-N-(4-(3-(pyridin-3-yl)propanoyl)phenyl)isoxazole-3-carboxamide (0.4 g, 42%). LCMS: m/z=362.05 (M+H) ⁺.

Step 4: Synthesis of N-(4-(1-amino-3-(pyridin-3-yl)propyl)phenyl)-5-cyclopropylisoxazole-3-carboxamide

To a stirred solution of 5-cyclopropyl-N-(4-(3-(pyridin-3-yl)propanoyl)phenyl)isoxazole-3-carboxamide (0.05 g, 0.13 mmol) in dry MeOH (10 mL) was added ammonium acetate (0.127 g, 1.66 mmol) and the reaction stirred at rt for 15 min. Sodium cyanoborohydride (0.034 g, 0.55 mmol) was then added. The reaction mixture was heated to reflux for 16 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with 0.5 M NaOH solution and extracted with ethyl acetate. The organic layer was washed with brine, dried over Na₂SO₄ and concentrated under reduced pressure to obtain a crude residue which was purified by prep HPLC to afford compound N-(4-(1-amino-3-(pyridin-3-yl)propyl)phenyl)-5-cyclopropylisoxazole-3-carboxamide (0.030 g, 12%). ¹H NMR (400 MHz, Methanol-d4): δ 8.41-8.29 (m, 2H), 7.88-7.79 (m, 2H), 7.69-7.65 (m, 1H), 7.49-7.41 (m, 2H), 7.39-7.35 (m, 1H), 6.48 (s, 1H), 4.21 (dd, J=8.8, 6.3 Hz, 1H), 2.70-2.51 (m, 2H), 2.34-2.23 (m, 2H), 2.2-2.15 (m, 1H), 1.31 (d, J=18.9 Hz, 1H), 1.21-1.11 (m, 2H), 1.04-0.95 (m, 2H); LCMS: m/z=362.17 (M+1)⁻.

Example 11

Synthesis of N-(4-aminobutyl)-5-cyclopropylisoxazole-3-carboxamide Hydrochloride (Cpd. No. 254)

Step 1: Synthesis of Tert-Butyl (4-(5-cyclopropylisoxazole-3-carboxamido) butyl)carbamate

To a stirred solution of 5-cyclopropylisoxazole-3-carboxylic acid (0.5 g, 3.2 mmol) in DMF (3 mL) was added EDCI.HCl (0.93 g, 4.9 mmol), HOBt (0.66 g, 4.9 mmol) and triethylamine (1.41 mL, 9.8 mmol). The solution was stirred for 10 min at 0° C. After that tert-butyl (4-aminobutyl) carbamate (0.67 g, 3.5 mmol) was added and the reaction stirred at rt for 16 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with water and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous Na₂SO₄ and concentrated under reduced pressure to obtain a crude residue which was purified by column chromatography to afford tert-butyl (4-(5-cyclopropylisoxazole-3-carboxamido)butyl)carbamate (0.25 g, 20%). LCMS: m/z=234.05 (M-Boc)⁺.

Step 2: Synthesis of N-(4-aminobutyl)-5-cyclopropylisoxazole-3-carboxamide Hydrochloride

To a stirred solution of tert-butyl (4-(5-cyclopropylisoxazole-3-carboxamido)butyl)carbamate (0.24 g, 0.74 mmol) in dioxane (2 mL), was added 4M dioxane:HCl (2 mL) at 0° C. and the reaction mixture was stirred at rt for 5 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the solvent was removed under reduced pressure to obtain a crude residue which was purified by Prep HPLC to obtain N-(4-aminobutyl)-5-cyclopropylisoxazole-3-carboxamide hydrochloride (0.16 g, 96%). ¹H NMR (400 MHz, DMSO-d₆):δ 8.71 (t, J=5.9 Hz, 1H), 7.76 (s, 2H), 6.48 (s, 1H), 3.23 (q, J=6.0 Hz, 2H), 2.78 (q, J=6.1 Hz, 2H), 2.18 (td, J=8.6, 4.5 Hz, 1H), 1.54 (p, J=3.4 Hz, 4H), 1.1-1.08 (m, 2H), 0.96-0.87 (m, 2H); LCMS (method A, ESI): m/z=224.10 (M+H)⁺.

Example 12

Synthesis of (S)—N-(4-(2-aminopropanamido)butyl)-5-cyclopropylisoxazole-3-carboxamide Hydrochloride (Cpd. No. 249)

Step 1: Synthesis of (S)-Tert-butyl (1-((4-(5-cyclopropylisoxazole-3-carboxamido)butyl) amino)-1-oxopropan-2-yl)carbamate

To a stirred solution of (S)-2-((tert-butoxycarbonyl) amino)propanoic acid (0.08 g, 0.37 mmol) in DMF (2 mL) was added EDCI.HCl (0.098 g, 0.51 mmol), HOBt (0.069 g, 0.51 mmol), and triethylamine (0.14 mL, 1.0 mmol). The solution was stirred for 10 min at 0° C. N-(4-Aminobutyl)-5-cyclopropylisoxazole-3-carboxamide (0.065 g, 0.34 mmol) was added and the reaction stirred at it for 16 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with water and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous Na₂SO₄ and concentrated under reduced pressure to obtain a crude residue which was purified by column chromatography to afford (S)-tert-butyl (1-((4-(5-cyclopropylisoxazole-3-carboxamido)butyl)amino)-1-oxopropan-2-yl)carbamate (0.08 g, 59%). LCMS: m/z=296.15 (M-Boc)⁺.

Step 2: Synthesis of (S)—N-(4-(2-aminopropanamido)butyl)-5-cyclopropylisoxazole-3-carboxamide Hydrochloride

To a stirred solution of (S)-tert-butyl (1-((4-(5-cyclopropylisoxazole-3-carboxamido)butyl)amino)-1-oxopropan-2-yl)carbamate (0.08 g, 0.20 mmol) in dioxane (2 mL) at 0° C. was added 4M dioxane:HCl solution (4 mL). The reaction mixture was stirred at rt for 5 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the solvent was removed under reduced pressure to obtain a crude residue which was purified by repeated washing with ether and pentane to obtain (S)—N-(4-(2-aminopropanamido)butyl)-5-cyclopropylisoxazole-3-carboxamide hydrochloride (0.049 g, 83%). ¹H NMR (400 MHz, DMSO-d₆): δ 8.67 (t, J=5.9 Hz, 1H), 8.39 (t, J=5.6 Hz, 1H), 8.10 (s, 3H), 6.47 (s, 1H), 3.80-3.70 (m, 1H), 3.26-3.03 (m, 4H), 2.24-2.12 (m, 1H), 1.56-1.36 (m, 4H), 1.33 (d, J=6.9 Hz, 3H), 1.16-1.02 (m, 2H), 0.96-0.87 (m, 2H); LCMS (method A, ESI): m/z=295.15 (M+H)⁺.

Example 13

Synthesis of N-((1r,4r)-4-aminocyclohexyl)-5-(2-hydroxyethyl)isoxazole-3-carboxamide Hydrochloride (Cpd. No. 9)

Step 1: Synthesis of Ethyl 5-(2-hydroxyethyl)isoxazole-3-carboxylate

To a stirred solution of but-3-yn-1-ol (2 g, 28.5 mmol) in ethanol (15 mL), was added ethyl nitro acetate (7.59 g, 57.06 mmol) and DABCO (0.32 g, 2.85 mmol). The reaction was heated in a sealed tube at 80° C. The progress of the reaction was monitored by TLC. After complete consumption of staring material the reaction was quenched with water and extracted with ethyl acetate, the organic layer was separated, washed with brine, dried using Na₂SO₄ and concentrated under reduced pressure to obtain a residue which was purified by column chromatography to obtain ethyl 5-(2-hydroxyethyl)isoxazole-3-carboxylate (3.1 g, 59%). LCMS: m/z=186 (M+H)⁺.

Step 2: Synthesis of 5-(2-hydroxyethyl)isoxazole-3-carboxylic Acid

To a stirred solution of ethyl 5-(2-hydroxyethyl)isoxazole-3-carboxylate (0.7 g, 3.78 mmol) in THF: MeOH: H₂O (1:1:1, 15 ml) was added LiOH (0.317 g, 7.56 mmol). The reaction was stirred at rt for 16 hr. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the solvent was removed under reduced pressure and the residue was acidified with dilute HCl to pH 2. The solid precipitated was collected by filtration and dried under reduced pressure to obtain 5-(2-hydroxyethyl)isoxazole-3-carboxylic acid (0.529 g, crude). ¹H NMR (400 MHz, DMSO-d₆): δ 11.0 (brs, 1H), 6.40 (s, 1H), 3.69-3.65 (m, 2H), 3.0-2.95 (m, 2H).

Step 3: Synthesis of Pentafluorophenyl 5-(2-hydroxyethyl)isoxazole-3-carboxylate

To a solution of 5-(2-hydroxyethyl)isoxazole-3-carboxylic acid (0.529 g, 1.27 mmol) in DMF (5 mL) at 0° C. under an N₂ atmosphere was added DCC (0.26 g, 1.27 mmol) followed by pentafluorophenol (0.233 g, 1.27 mmol). The reaction was stirred at rt for 2 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with water and extracted with ethyl acetate. The organic layer was separated, washed with brine, dried using Na₂SO₄ and concentrated under reduced pressure to obtain a residue which was purified by column chromatography to give pentafluorophenyl 5-(2-hydroxyethyl)isoxazole-3-carboxylate (0.26 g, 63%). ¹H NMR (400 MHz, DMSO-d₆): δ 6.40 (s, 1H), 3.7-3.65 (m, 2H), 3.0-2.96 (m, 2H).

Step 4: Synthesis of Tert-Butyl ((1r,4r)-4-(5-(2-hydroxyethyl)isoxazole-3-carboxamido)cyclohexyl)carbamate

To a stirred solution of pentafluorophenyl 5-(2-hydroxyethyl)isoxazole-3-carboxylate (0.25 g, 0.77 mmol) in DMF (5 mL) was added tert-butyl ((1r, 4r)-4-aminocyclohexyl) carbamate (0.16 g, 0.77 mmol). The reaction was stirred at rt for 2 hr. and the progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with water and extracted with ethyl acetate. The organic layer was separated, washed with brine, dried using Na₂SO₄ and concentrated under reduced pressure to obtain a residue which was purified by column chromatography to obtain tert-butyl ((1 r,4r)-4-(5-(2-hydroxyethyl)isoxazole-3-carboxamido)cyclohexyl)carbamate (0.130 g, 47%). LCMS: m/z=254 (M+H)⁺.

Step 5: Synthesis of N-((1r,4r)-4-aminocyclohexyl)-5-(2-hydroxyethyl)isoxazole-3-carboxamide Hydrochloride

To a stirred solution of tert-butyl ((1 r,4r)-4-(5-(2-hydroxyethyl)isoxazole-3-carboxamido)cyclohexyl)carbamate (0.1 g, 0.28 mmol) in methanol (1 mL) at 0° C. was added 4 M methanol:HCl (10 mL). The reaction was at rt stirred for 2 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the solvent was removed under reduced pressure and the residue was purified by washings with diethyl ether and hexane to obtain compound N-((1r,4r)-4-aminocyclohexyl)-5-(2-hydroxyethyl)isoxazole-3-carboxamide hydrochloride (0.060 g, 83%). ¹H NMR (400 MHz, DMSO-d₅) δ 8.62-8.54 (m, 1H), 8.04 (d, J=5.6 Hz, 3H), 6.58 (s, 1H), 4.89 (s, 1H), 3.70 (t, J=6.3 Hz, 3H), 2.93 (t, J=6.3 Hz, 3H), 2.02-1.95 (m, 2H), 1.85 (d, J=7.1 Hz, 2H), 1.51-1.34 (m, 4H), LCMS: m/z=254 (M+H)⁺.

Example 14

Synthesis of N-((1r,4r)-4-aminocyclohexyl)-5-cyclopropyl-4-iodoisoxazole-3-carboxamide Hydrochloride (Cpd. No. 8

Step 1: Synthesis of Ethyl 5-cyclopropyl-4-iodooxazole-3-carboxylate

To the stirred solution of ethyl 5-cyclopropylisoxazole-3-carboxylate (1 g, 5.52 mmol) in TFA (16 ml), was added N-iodosuccinimide (1.48 g, 6.62 mmol) and reaction mixture stirred at rt for 2 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with water and extracted with ethyl acetate. The organic layer was dried over sodium sulphate and evaporated under reduced pressure. The material was purified by column chromatography to afford ethyl 5-cyclopropyl-4-iodoisoxazole-3-carboxylate (1.27 g, 75%).

Step 2: Synthesis of 5-cyclopropyl-4-iodoisoxazole-3-carboxylic Acid

To a stirred solution of ethyl 5-cyclopropyl-4-iodoisoxazole-3-carboxylate (1.27 g, 4.14 mmol) in THF:MeOH:H₂O (1:1:1, 9 ml) was added LiOH (1.04 g, 24.8 mmol). The solution was stirred at rt for 16 hr. After complete consumption of starting material, the residue was acidified to pH 2 with Amberlyst. The reaction mixture was filtration and concentrated under reduced pressure to obtain a compound 5-cyclopropyl-4-iodoisoxazole-3-carboxylic acid (1.01 g, 87%). LCMS: m/z=278.9 (M+H)⁺.

Step 3: Synthesis of Tert-Butyl ((1r,4r)-4-(5-cyclopropyl-4-iodoisoxazole-3-carboxamido)cyclohexyl)carbamate

To a stirred solution of 5-cyclopropyl-4-iodoisoxazole-3-carboxylic acid (1.0 g, 3.59 mmol) in DMF (10 ml) was added EDCI (0.892 g, 4.66 mmol) and HOBT (0.533 g, 3.94 mmol). The solution was stirred for 10 min at 0° C. Next tert-butyl ((1r,4r)-4-aminocyclohexyl)carbamate (0.769 g, 3.59 mmol) was added and the reaction was stirred at it for 2 hr. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was quenched with water and the solid precipitated was collected by filtration and dried under reduced pressure to obtain a residue. The material was purified by column chromatography to afford tert-butyl ((1 r,4r)-4-(5-cyclopropyl-4-iodoisoxazole-3-carboxamido)cyclohexyl)carbamate (0.48 g, 28%).

Step 4: Synthesis of N-((1r,4r)-4-aminocyclohexyl-5-cyclopropyl-4-iodoisoxazole-3-carboxamide Hydrochloride

To a stirred solution of tert-butyl ((1r,4r)-4-(5-cyclopropyl-4-iodoisoxazole-3-carboxamido)cyclohexyl)carbamate (0.1 g, 0.210 mmol) in methanol (3 ml) at 0° C. was added 4 M methanolic:HCl (3 ml). The reaction was stirred for at rt for 1 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the solvent was removed under reduced pressure and the residue was purified by washing with diethyl ether to obtain N-((1r,4r)-4-aminocyclohexyl)-5-cyclopropyl-4-iodoisoxazole-3-carboxamide hydrochloride (0.008 g, 10%). ¹H NMR (400 MHz. DMSO-d₆) δ 8.70 (d, J=7.9 Hz, 1H), 7.92 (s, 3H), 3.67 (d, J=10.0 Hz, 1H), 2.96 (t, J=9.5 Hz, 1H), 2.20-2.17 (m, 1H), 1.97 (d, J=9.4 Hz, 2H), 1.87 (d, J 10.4 Hz, 2H), 1.39 (q, J=12.2, 11.2 Hz, 4H), 1.21-1.11 (m, 2H), 1.07-0.98 (m, 2H); LCMS (method C, ESI): m/z=375 (M+H)⁺.

Example 15

Synthesis of N3-((1 r,4r)-4-aminocyclohexyl)-5-cyclopropylisoxazole-3,4-dicarboxamide Hydrochloride (Cpd. No. 13)

Step 1: Synthesis of 3-(((r,4r)-4-((tert-butoxycarbonyl)amino)cyclohexyl)carbamoyl)-5-cyclopropylisoxazole-4-carboxylic Acid

To the stirred solution of tert-butyl ((1r,4r)-4-(5-cyclopropyl-4-iodoisoxazole-3-carboxamido)cyclohexyl)carbamate (1.6 g, 3.37 mmol) in DMF:H₂O (4:1, 10 ml) was added Pd(OAc)₂ (0.037 g, 0.168 mmol) and dppf (0.186 g, 0.337 mmol) and the reaction heated at 55° C. under CO balloon pressure overnight. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was filtered, diluted with water and extracted with ethyl acetate. The organic layer was separated, washed with brine, dried using Na₂SO₄ and concentrated under reduced pressure to obtain a residue which was purified by column chromatography to obtain 3-(((1r,4r)-4-((tert-butoxycarbonyl)amino)cyclohexyl)carbamoyl)-5-cyclopropylisoxazole-4-carboxylic acid (0.350 g, 26%).

Step 2: Synthesis of Pentafluorophenyl 3-(((1r,4r)-4-((tert-butoxycarbonyl)amino) cyclohexyl)carbamoyl)-5-cyclopropylisoxazole-4-carboxylate

To the stirred solution of 3-(((1r,4r)-4-((tert-butoxycarbonyl)amino) cyclohexyl)carbamoyl)-5-cyclopropylisoxazole-4-carboxylic acid (0.2 g, 0.508 mmol) in DMF (2 mL) at 0° C. was added pentafluorophenol (0.093 g, 0.508 mmol) and DCC (0.054 g, 0.508 mmol). The reaction was stirred at rt for 30 min. After complete consumption of starting material, the reaction was quenched with water and extracted with DCM; the organic layer was separated, washed with sodium bicarbonate solution, dried using Na₂SO₄ and concentrated under reduced pressure to obtain pentafluorophenyl 3-(((r,4r)-4-((tert-butoxycarbonyl)amino)cyclohexyl)carbamoyl)-5-cyclopropylisoxazole-4-carboxylate (0.250 g). The material was used without further purification LCMS: m/z=583.12 (M+Na) ⁺.

Step 3: Synthesis of Tert-Butyl ((1r,4r)-4-(4-carbamoyl-5-cyclopropylisoxazole-3-carboxamido)cyclohexyl)carbamate

Ammonia was bubbled through a stirred solution of pentafluorophenyl 3-(((1 r,4r)-4-((tert-butoxycarbonyl)amino)cyclohexyl)carbamoyl)-5-cyclopropylisoxazole-4-carboxylate (0.08 g, 0.143 mmol) in DCM (2 mL) at 0° C. for 30 min. The reaction was then stirred at rt for 2 h. The progress of the reaction was monitored by TLC. After complete consumption of starting material, the reaction was evaporated to complete dryness. The material was purified by trituration with hexane and diethyl ether to obtain tert-butyl ((1 r,4r)-4-4-carbamoyl-5-cyclopropylisoxazole-3-carboxamido)cyclohexyl) carbamate (0.040 g, 71%.).

Step 4: Synthesis of N3-((1r,4r)-4-aminocyclohexyl)-5-cyclopropylisoxazole-3,4-dicarboxamide Hydrochloride

To a stirred solution of tert-butyl ((1r,4r)-4-(4-carbamoyl-5-cyclopropylisoxazole-3-carboxamido)cyclohexyl)carbamate (0.040 g, 0.101 mmol) in dioxane (2 mL) at 0° C. was added 4 M dioxane:HCl (3 mL). The reaction was stirred at rt for 1 h and progress monitored by TLC. After complete consumption of starting material, the solvent was removed under reduced pressure and the residue was purified by washing with diethyl ether to obtain N3-((1 r,4r)-4-aminocyclohexyl)-5-cyclopropylisoxazole-3,4-dicarboxamide hydrochloride (0.022 g, 75%). ¹H NMR (400 MHz, DMSO-d₆) δ 9.10 (d, J=7.8 Hz, 1H), 8.50-8.45 (m, 1H), 7.91 (s, 3H), 7.64 (s, 1H), 3.83 (brs, 1H), 3.0-2.97 (m, 2H), 1.96 (d, J=7.6 Hz, 2H), 1.91-1.84 (m, 2H), 1.49-136 (m, 4H), 1.24-1.21 (m, 2H), 1.15-1.10 (m, 2H); LCMS: m/z=293.15 (M+H)⁺.

Example 16

Synthesis of N-(6-((R)-3-aminobutanamido)bicyclo[3.3.1]nonan-2-yl)-5-cyclopropylisoxazole-3-carboxamide (Cpd. No. 293)

Step 1: Synthesis of N²,N⁶-dibenzylbicyclo[3.3.1]nonane-2,6-diamine

To a solution of bicyclo[3.3.1]nonane-2,6-dione (1.0 g, 6.5707 mmol) in THF (10 mL) was added benzyl amine (2.87 mL, 26.283 mmol) under N₂ atmosphere at rt and stirred for 5 minutes. AcOH (0.8 mL, 1.3798 mmol) was added and mixture was cooled to 0° C. Sodium triacetoxy borohydride (5.57 g, 26.283 mmol) was added portionwise over 30 min. The reaction was allowed to stir at rt overnight. The reaction was diluted with water (20 mL) and neutralized with saturated aq. solution of NaHCO₃ (80 mL). The mixture was extracted with DCM (40 mL×4). The combined organic layer was washed with saturated aq solution of NaHCO_J(50 mL), brine (50 mL), dried over Na₂SO₄ and concentrated under reduced pressure to give crude product, which was purified by column chromatography using mobile phase 0.3% methanol in DCM to obtain N²,N⁶-dibenzylbicyclo[3.3.1]nonane-2,6-diamine (1.3 g, yield 59.14%) LCMS: m/z=335.16 [M+H]⁺.

Step 2: Synthesis of bicyclo[3.3.1]nonane-2,6-diamine

To a suspension of 10% Pd/C (dry) in MeOH (3 mL) was added solution of N²,N⁶-dibenzylbicyclo[3.3.1]nonane-2,6-diamine (1.3 g, 3.886 mmol) in MeOH (10 mL). The reaction was stirred overnight under a H₂ atmosphere. The reaction was filtered through a celite pad and washed with MeOH (50 mL). The filtrate was concentrated under reduced pressure to obtain title compound (0.5 g, yield 83.4%). LCMS: m/z=155.20 [M+H]⁺.

Step 3: Synthesis of Tert-Butyl (6-aminobicyclo[3.3.1]nonan-2-yl)carbamate

To a solution of bicyclo[3.3.1]nonane-2,6-diamine (500 mg, 3.241 mmol) in a mixture of MeOH (10 mL) and THF (20 mL) at 0° C. under N₂ atmosphere was added a solution of Boc-anhydride (0.37 mL, 1.620 mmol) in mixture of MeOH (20 mL) and THF (50 mL) over a period of 6 hours. The reaction was allowed to stir at rt overnight. The reaction was concentrated under reduced pressure to give crude product which was purified by column chromatography using basic alumina as stationary phase and 0-4% MeOH in DCM as mobile phase to obtain title compound (290 mg, yield 35.17%). LCMS: m/z=255.25 [M+H]⁺.

Step 4: Synthesis of Tert-Butyl (6-(5-cyclopropylisoxazole-3-carboxamido)bicyclo[3.3.1]nonan-2-yl)carbamate

To a solution of 5-cyclopropylisoxazole-3-carboxylic acid (175 mg, 1.14 mmol) in DMF at 0° C. under N₂ atmosphere was added HATU (650 mg, 1.71 mmol). The reaction stirred for 20 min. and then then tert-butyl (6-aminobicyclo[3.3.1]nonan-2-yl)carbamate (290 mg, 1.14 mmol) was added followed by addition of DIPEA (0.6 mL, 3.42 mmol). The reaction was brought to rt and stirred overnight. The reaction was diluted with water (50 mL) and extracted with ethyl acetate (50 mL×3). The combined organic layer was washed with brine (20 mL), dried over Na₂SO₄ and concentrated to give crude product which was purified by column chromatography using mobile phase to 0-12% ethyl acetate in hexane to obtain the title compound (300 mg, yield 75.5%). LCMS: m/z=334.36 [M−56]⁺.

Step 5: Synthesis of N-(6-aminobicyclo[3.3.1]nonan-2-yl)-5-cyclopropylisoxazole-3-carboxamide TFA Salt

To a solution of tert-butyl (6-(5-cyclopropylisoxazole-3-carboxamido)bicyclo[3.3.1]nonan-2-yl)carbamate (300 mg, 0.7702 mmol) in DCM (3 mL) at 0° C. under N₂ atmosphere was added TFA (1.5 mL). The reaction was allowed to stir at rt for 2 hours. The reaction was concentrated under reduced pressure and triturated with diethyl ether to obtain the title compound as the TFA salt (300 mg, yield 96.5%). LCMS: m/z=290.36 [M+H]⁺.

Step 6: Synthesis of Tert-Butyl ((2R)-4-((6-(5-cyclopropylisoxazole-3-carboxamido) bicyclo[3.3.1]nonan-2-yl)amino)-4-oxobutan-2-yl)carbamate

To a solution of the TFA salt of (R)-3-((tert-butoxycarbonyl) amino)butanoic acid (50 mg, 0.246 mmol) in DMF (1.0 mL) at 0° C. was added HATU (140 mg, 0.369 mmol). After stirring for 15 minutes, the TFA salt of N-(6-aminobicyclo[3.3.1]nonan-2-yl)-5-cyclopropylisoxazole-3-carboxamide (100 mg, 0.246 mmol) was added followed by addition of DIPEA (0.126 mL, 0.738 mmol). The reaction was brought to rt and stirred overnight. The reaction was diluted with water (20 mL) and extracted with ethyl acetate (20 mL×3). The combined organic layer was dried over Na₂SO4 and concentrated under reduced pressure to give crude product which was purified by column chromatography using mobile phase 0-70% ethyl acetate in hexane to obtain the title compound (80 mg, 67.9%). LCMS: m/z=475.16 [M+H]⁺.

Step 7: Synthesis of N-(6-((R)-3-aminobutanamido)bicyclo[3.3.]nonan-2-yl)-5-cyclopropylisoxazole-3-carboxamide

To a solution of tert-butyl ((2R)-4-((6-(5-cyclopropylisoxazole-3-carboxamido)bicyclo[3.3.1]nonan-2-yl)amino)-4-oxobutan-2-yl)carbamate (80 mg, 0.1686 mmol) in DCM (0.8 mL) at 0° C. under N₂ atmosphere was added TFA (0.4 mL) dropwise. The reaction was allowed to stir at room temperature for 2 hours. The reaction was concentrated under reduced pressure to give crude product which was triturated with diethyl ether (10 mL) and hexanes (10 mL) to obtain the title compound as TFA salt (50 mg, 60.7%). ¹H NMR (400 MHz, DMSO-d₆) δ 8.667 (d, 1H), 8.180 (d, 111, 7.792 (s, 3H), 6.478 (s, 1H), 4.067 (s, 1H), 3.907 (s, 1H), 3.39 (s, 1H), 2.42 (s, 2H), 2.18 (s, 2H), 2.42 (s, 2H), 1.91-1.88 (m, 4H), 1.78-1.65 (m, 4H), 1.54-1.50 (m, 4H), 1.16-1.09 (m, 5H), 0.917 (s, 1H); LCMS: m/z=375.4 [M+1]⁻.

Example 17

Synthesis of N-(4-(3-aminopropanamido)phenyl)-5-cyclopropylisoxazole-3-carboxamide Hydrochloride (Cpd. No. 325)

Step 1: Synthesis of N-(4-aminophenyl)-5-cycloproplisoxazole-3-carboxamide

Into a 250-mL round-bottom flask purged and maintained with an inert atmosphere of nitrogen was placed dichloromethane (40 mL) and benzene-1,4-diamine (1.059 g, 9.79 mmol, 1.05 equiv); then 5-cyclopropyl-1,2-oxazole-3-carbonyl chloride (1.6 g, 9.33 mmol, 1.00 equiv) in 10 mL DCM was added dropwise. The resulting solution was stirred for 12 h at room temperature. The resulting mixture was concentrated under vacuum. The solids were filtered off. The filtrate was extracted with 2×100 mL of ethyl acetate and the organic layers combined and concentrated under vacuum. The residue was purified on a silica gel column with ethyl acetate/petroleum ether (10:1). This resulted in 750 mg (33%) of N-(4-aminophenyl)-5-cyclopropylisoxazole-3-carboxamide as a yellow solid. LCMS: rt=1.04 min, m/z=285.0 [M+CN]⁺.

Step 2: Synthesis of Tert-Butyl 3-(4-(5-cyclopropylisoxazole-3-carboxamido) phenylamino)-3-oxopropylcarbamate

Into a 100-mL round-bottom flask purged and maintained with an inert atmosphere of nitrogen was placed N-(4-aminophenyl)-5-cyclopropylisoxazole-3-carboxamide (170 mg, 0.70 mmol, 1.00 equiv), tetrahydrofuran (5 mL), dichloromethane (5 mL), EDCI (401 mg, 2.09 mmol, 2.99 equiv), DIEA (271 mg, 2.10 mmol, 3.00 equiv), HOBT (283 mg, 2.09 mmol, 3.00 equiv), and 3-[[(tert-butoxy)carbonyl]amino]propanoic acid (264 mg, 1.40 mmol, 2.00 equiv). The resulting solution was stirred for 6 h at room temperature. The mixture was concentrated under vacuum. The residue was diluted with 50 mL of H₂O and extracted with DCM. The organic phase was collected and dried over anhydrous sodium sulfate. The residue was purified on a silica gel column with ethyl acetate/petroleum ether (5:1). This resulted in 120 mg (41%) of tert-butyl 3-(4-(5-cyclopropylisoxazole-3-carboxamido)phenylamino)-3-oxopropylcarbamate as a light yellow solid. LCMS: m/z=437.1 [M+Na]⁺.

Step 3: Synthesis of N-(4-(3-aminopropanamido)phenyl)-5-cyclopropylisoxazole-3-carboxamide Hydrochloride

Into a 50-mL round-bottom flask purged and maintained with an inert atmosphere of nitrogen was placed tert-butyl 3-(4-(5-cyclopropylisoxazole-3-carboxamido)phenylamino)-3-oxopropylcarbamate (120 mg, 0.29 mmol, 1.00 equiv) and 1,4-dioxane (5 mL). Then hydrogen chloride was introduced into the mixture. The resulting solution was stirred for 2 h at room temperature. The mixture was then concentrated under vacuum. The crude product was purified by Flash-Prep-HPLC with the following conditions (IntelFlash-1): Column, silica gel; mobile phase, detector, UV 254 nm. The result solution was acidified by dilute hydrochloric acid (1N), then concentrated and dried. This resulted in 21.4 mg (24%) of N-(4-(3-aminopropanamido)phenyl)-5-cyclopropylisoxazole-3-carboxamide hydrochloride as a white solid. ¹H-NMR (300 MHz, D₂O): δ 7.54-7.37 (m, 4H), 6.36 (s, 1H), 3.25 (t, J=6.6 Hz, 2H), 2.77 (t, J=6.6 Hz, 2H), 2.12-2.04 (m, 1H), 1.08-1.02 (m, 2H), 0.97-0.92 (m, 2H). LCMS: m/z=315.0 [M+H]⁺.

Example 18

Synthesis of N-(1-((1-(4-chlorobenzyl)-1H-pyrazol-4-yl)methyl)azetidin-3-yl)-5-cyclopropylisoxazole-3-carboxamide (Cpd. No. 428)

Step 1: Synthesis of Tert-Butyl 3-(5-cyclopropylisoxazole-3-carboxamido)azetidine-1-carboxylate

To a solution of 5-cyclopropylisoxazole-3-carboxylic acid (1.53 g) in DMF (20 mL) was added HATU (6.84 g, DIPEA (3.87 g) and tert-butyl 3-aminoazetidine-1-carboxylate (2.58 g). The resulting mixture was stirred at r.t. overnight. The reaction mixture was diluted with ethyl acetate (120 mL), washed with brine (30 mL×4), dried over Na₂SO₄ and concentrated under reduced pressure. The residue was purified by flash column chromatography (eluant petroleum ether: ethyl acetate gradient elution 100:0 to 50:50) to afford tert-butyl 3-(5-cyclopropylisoxazole-3-carboxamido)azetidine-1-carboxylate (2.55 g, 83%) as a pale yellow solid. ESI-LCMS (m/z): 330[M+Na]⁺.

Step 2: Synthesis of N-(azetidin-3-yl)-5-cyclopropylisoxazole-3-carboxamide

To a solution of tert-butyl 3-(5-cyclopropylisoxazole-3-carboxamido)azetidine-1-carboxylate (2.55 g) in DCM (10 mL) was added TFA (4 mL) drop-wise. The resulting mixture was stirred at r.t. overnight. The reaction mixture was concentrated under reduced pressure and the residue was treated with ammonia in MeOH (7N, 30 mL) and the solution concentrated under reduced pressure. The residue was purified by flash column chromatography (eluant: DCM:MeOH (MeOH:7N NH₃ 100:1) 10:1) to afford N-(azetidin-3-yl)-5-cyclopropylisoxazole-3-carboxamide (1.35 g, 78%) as a white solid. ESI-LCMS (m/z): 208[M+H]⁺.

Step 3: Synthesis of N-(1-((1-(4-chlorobenzyl)-1H-pyrazol-4-yl)methyl)azetidin-3-yl)-5-cyclopropylisoxazole-3-carboxamide

Into the stirred solution of N-(azetidin-3-yl)-5-cyclopropylisoxazole-3-carboxamide (400 mg, 1.9 mmol) and 1-(4-chlorobenzyl)-1H-pyrazole-4-carbaldehyde (425 mg, 1.9 mmol) in MeOH (10 mL) was added NaBH₃CN (363 mg, 5.8 mmol). The mixture was stirred at 60° C. for 20 h. The product was purified by reversed phased pre-HPLC (NH₄HCO3. CH₃CN:H₂O=5%-95%) to afford N-(l-((1-(4-chlorobenzyl)-1H-pyrazol-4-yl)methyl)azetidin-3-yl)-5-cyclopropylisoxazole-3-carboxamide as a white solid (70 mg, 8.8%). ESI-LCMS (m/z): 412 [M+H]⁻; ¹HNMR (400 MHz, CD₃OD) d ppm: 7.64 (s, 1H), 7.50 (s, 1H), 7.37-7.33 (m, 2H), 7.20 (d, J=8.81 Hz, 2H), 6.37 (s, 1H), 5.32 (s, 2H), 4.61-4.58 (m, 1H), 3.70-3.66 (m, 2H), 3.61 (s, 2H), 3.22-3.18 (m, 2H), 2.19-2.15 (m, 1H), 1.18-1.13 (m, 2H), 1.00-0.96 (m, 2H).

Example 19

SMYD3 Biochemical Assay

General Materials

S-adenosylmethionine (SAM), S-adenosylhomocysteine (SAH), Tris, Tween20, dimethylsulfoxide (DMSO), bovine skin gelatin (BSG), and Tris(2-carboxyethyl)phosphine hydrochloride solution (TCEP) were purchased from Sigma-Aldrich at the highest level of purity possible. ³H-SAM was purchase from American Radiolabeled Chemicals with a specific activity of 80 Ci/mmol. 384-well opaque white OptiPlates and SPA beads (Perkin Elmer, catalog # RPNQ0013) were purchased from PerkinElmer.

Substrates

N-terminally GST-tagged MEKK2 (MAP3K2) protein corresponding to reference sequence AAF63496.3 was purchased from Life Technologies (catalog # PV4010). This protein was expressed in High Five insect cells and purified to >85% purity. Protein identity was confirmed by MS/MS analysis after proteolytic digestion. The protein sequence used was:

(SEQ ID No. 1).

MAPILGYWKIKGLVQPTRLLLEYLEEKYEEHLYERDEGDKWRNKKFELGL

EFPNLPYYIDGDVKLTQSMAIIRYIADKHNMLGGCPKERAEISMLEGAVL

DIRYGVSRIAYSKDFETLKVDFLSKLPEMLKMFEDRLCHKTYLNGDHVTH

PDFMLYDALDVVLYMDPMCLDAFPKLVCFKKRIEAIPQIDKYLKSSKYIA

WPLQGWQATFGGGDHPPKSDLVPRHNQTSLYKKAGTMDDQQALNSIMQDL

AVLHKASRPALSLQETRKAKSSSPKKQNDVRVKFEHRGEKRILQFPRPVK

LEDLRSKAKIAFGQSMDLHYTNNELVIPLTTQDDLDKALELLDRSIHMKS

LKILLVINGSTQATNLEPLPSLEDLDNTVFGAERKKRLSIIGPTSRDRSS

PPPGYIPDELHQVARNGSFTSINSEGEFIPESMEQMLDPLSLSSPENSGS

GSCPSLDSPLDGESYPKSRMPRAQSYPDNHQEFSDYDNPIFEKFGKGGTY

PRRYHVSYHHQEYNDGRKTFPRARRTQGNQLTSPVSFSPTDHSLSTSSGS

SIFTPEYDDSRIRRRGSDIDNPTLTVMDISPPSRSPRAPTNWRLGKLLGQ

GAFGRVYLCYDVDTGRELAVKQVQFDPDSPETSKEVNALECEIQLLKNLL

HERIVQYYGCLRDPQEKTLSIFMEYMPGGSIKDQLKAYGALTENVTRKYT

RQILEGVHYLHSNMIVHRDIKGANILRDSTGNVKLGDFGASKRLQTICLS

GTGMKSVTGTPYWMSPEVISGQGYGRKADIWSVACTVVEMLTEKPPWAEF

EAMAAIFKIATQPTNPKLPPHVSDYTRDFLKRIFVEAKLRPSADELLRHM

FVHYH.

Molecular Biology

Full-length human SMYD3 isoform 1 (BAB86333) was inserted into a modified pET21 b plasmid containing a His6 tag and TEV and SUMO cleavage sites. Because two common variants of SMYD3 exist in the population, site directed mutagenesis was subsequently performed to change amino acid 13 from an asparagine to a lysine, resulting in plasmid pEPZ533. A lysine at position 13 conforms to the more commonly occurring sequence (NP_001161212).

Protein Expression

E. coli (BL21 codonplus RIL strain, Stratagene) were transformed with plasmid pEPZ553 by mixing competent cells and plasmid DNA and incubating on ice for 30 minutes followed by heat shock at 42° C. for 1 minute and cooling on ice for 2 minutes. Transformed cells were grown and selected on LB agar with 100 μg/mL ampicillin and 17 μg/mL chloramphenicol at 37° C. overnight. A single clone was used to inoculate 200 mL of LB medium with 100 g/mL ampicillin and 17 μg/mL chloramphenicol and incubated at 37° C. on an orbital shaker at 180 rpm. Once in log growth, the culture was diluted 1:100 into 2 L of LB medium and grown until OD₆₀₀ was about 0.3 after which the culture was incubated at 15° C. and 160 rpm. Once OD₆₀₀ reached about 0.4, IPTG was added to a final concentration of 0.1 mM and the cells were grown overnight at 15° C. and 160 rpm. Cells were harvested by centrifugation at 8000 rpm, for 4 minutes at 4° C. and stored at −80° C. for purification.

Protein Purification

Expressed full-length human His-tagged SMYD3 protein was purified from cell paste by Nickel affinity chromatography after equilibration of the resin with Buffer A (25 mM Tris, 200 mM NaCl, 5% glycerol, 5 mM β-mercaptoethanol, pH7.8). The column was washed with Buffer B (Buffer A plus 20 mM imidazole) and His-tagged SMYD3 was eluted with Buffer C (Buffer A plus 300 mM imidazole). The His tag, TEV and SUMO cleavage sites were removed generating native SMYD3 by addition of ULP1 protein at a ratio of 1:200 (ULP1:SMYD3). Imidazole was removed by dialysis overnight in Buffer A. The dialyzed solution was applied to a second Nickel column and the native SMYD3 protein was collected from the column flow-through. The flow-through was dialyzed in Buffer D (25 mM Tris, 5% glycerol, 5 mM β-mercaptoethanol, 50 mM NaCl, pH7.8) and ULP1 was removed using a Q sepharose fast flow column. SMYD3 was eluted in Buffer A and further purified using an S200 size-exclusion column equilibrated with Buffer A. SMYD3 was concentrated to 2 mg/mL with a final purity of 89%.

Predicted Translation:

SMYD3 (Q9H7B4)

(SEQ ID No. 2).

MEPLKVEKFATAKRGNGLRAVTPLRPGELLFRSDPLAYTVCKGSRGVVCD

RCLLGKEKLMRCSQCRVAKYCSAKCQKKAWPDHKRECKCLKSCKPRYPPD

SVRLLGRVVFKLMDGAPSESEKLYSFYDLESNINKLTEDKKEGLRQLVMT

FQHFMREEIQDASQLPPAFDLFEAFAKVICNSFTICNAEMQEVGVGLYPS

ISLLNHSCDPNCSIVFNGPHLLLRAVRDIEVGEELTICYLDMLMTSEERR

KQLRDQYCFECDCFRCQTQDKDADMLTGDEQVWKEVQESLKKIEELKAHW

KWEQVLAMCQAIISSNSERLPDINIYQLKVLDCAMDACINLGLLEEALFY

GTRTMEPYRIFFPGSHPVRGVQVMKVGKLQLHQGMFPQAMKNLRLAFDIM

RVTHGREHSLIEDLILLLEECDANIRAS.

General Procedure for SMYD3 Enzyme Assays on MEKK2 Protein Substrate

The assays were all performed in a buffer consisting of 25 mM Tris-Cl pH 8.0, 1 mM TCEP, 0.005% BSG, and 0.005% Tween 20, prepared on the day of use. Compounds in 100% DMSO (1 ul) were spotted into a 384-well white opaque OptiPlate using a Bravo automated liquid handling platform outfitted with a 384-channel head (Agilent Technologies). DMSO (1 ul) was added to Columns 11, 12, 23, 24, rows A-H for the maximum signal control and 1 ul of SAH, a known product and inhibitor of SMYD3, was added to columns 11, 12, 23, 24, rows I-P for the minimum signal control. A cocktail (40 ul) containing the SMYD3 enzyme was added by Multidrop Combi (Thermo-Fisher). The compounds were allowed to incubate with SMYD3 for 30 min at room temperature, then a cocktail (10 ul) containing SAM and MEKK2 was added to initiate the reaction (final volume=51 ul). The final concentrations of the components were as follows: SMYD3 was 0.4 nM, ³H-SAM was 8 nM, MEKK2 was 12 nM. SAH in the minimum signal control wells was 1 mM, and the DMSO concentration was 2%. The assays were stopped by the addition of non-radiolabeled SAM (10 ul) to a final concentration of 100 uM, which dilutes the ³H-SAM to a level where its incorporation into MEKK2 is no longer detectable. Radiolabeled MEKK2 was detected using a scintillation proximity assay (SPA). 10 uL of a 10 mg/mL solution of SPA beads in 0.5 M citric acid was added and the plates centrifuged at 600 rpm for 1 min to precipitate the radiolabeled MEKK2 onto the SPA beads. The plates were then read in a PerkinElmer TopCount plate reader to measure the quantity of ³H-labeled MEKK2 as disintegrations per minute (dpm) or alternatively, referred to as counts per minute (cpm).

% Inhibition Calculation

%   inh = 100 - ( dpm cmpd - dpm m   i   n dpm ma   x - dpm m   i   n ) × 100

Where dpm=disintegrations per minute, cmpd=signal in assay well, and min and max are the respective minimum and maximum signal controls.

Four-Parameter IC50 Fit

Y = Bottom + ( Top - Bottom ) ( 1 + ( X IC 50 ) Hill   Coefficient

Where top and bottom are the normally allowed to float, but may be fixed at 100 or 0 respectively in a 3-parameter fit. The Hill Coefficient normally allowed to float but may also be fixed at 1 in a 3-parameter fit. Y is the % inhibition and X is the compound concentration.

SMYD3 biochemical assay data for representative Compounds of the Disclosure are presented in Table 1 in the column titled “SMYD3 Biochem IC₅₀ (μM).”

Example 20

SMYD3 Cell Assay

Trimethyl-MEKK2-in-Cell Western Assay

293T/17 adherent cells were purchased from ATCC (American Type Culture Collection), Manassas, Va., USA. MEM/Glutamax medium, Optimem Reduced Serum medium, penicillin-streptomycin, 0.05% trypsin and 1×D-PBS were purchased from Life Technologies, Grand Island, N.Y., USA. PBS-10X was purchased from Ambion, Life Technologies, Grand Island. N.Y., USA. PBS with Tween 20 (PBST (10×)) was purchased from KPL, Gaithersburg, Md., USA. Tet System FBS— approved FBS US Source was purchased from Clontech. Mountain View, Calif., USA. Odyssey blocking buffer, 800CW goat anti-rabbit IgG (H+L) antibody, 680CW Goat anti-mouse IgG (H+L) and Licor Odyssey infrared scanner were purchased from Licor Biosciences. Lincoln, Nebr., USA. Tri-methyl-Lysine [A260]-MEKK2 antibody, MEKK2 and SMYD3 plasmids were made at Epizyne. Anti-flag monoclonal mouse antibody was purchased from Sigma, St. Louis, Mo., USA. Methanol was purchased from VWR. Franklin, Mass., USA. 10% Tween 20 was purchased from KPL, Inc., Gaithersburg, Md. USA. Fugene was purchased from Promega, Madison, Wis., USA. The Biotek ELx405 was purchased from BioTek, Winooski, Vt., USA. The multidrop combi was purchased from Thermo Scientific, Waltham, Mass., USA.

293T/17 adherent cells were maintained in growth medium (MEM/Glutamax medium supplemented with 10% v/v Tet System FBS and cultured at 37° C. under 5% CO₂.

Cell treatment, In Cell Western (ICW) for detection of trimethyl-lysine-MEKK2 and MEKK2.

293T/17 cells were seeded in assay medium at a concentration of 33,333 cells per cm² in 30 mL medium per T150 flask and incubated at 37° C. under 5% CO₂. Plasmids were prepared for delivery to cells by first mixing 1350 μL Opti-MEM with Fugene (81 μL) in a sterile Eppendorf and incubated for five minutes at room temperature (RT). MEKK2-flag (13.6 ug/T150) MEKK2 p3XFlag-CMV-14 with C-3XFlag and SMYD3 (0.151 ug/T150) SMYD3 p3XFlag-CMV-14 without C-3XFlag plasmids were aliquotted to a 1.7 mL sterile microfuge tube. The gene ID for MEKK2 and SMYD3 is NM_006609.3 and Q9H7B4, respectively. Entire volume of Opti-MEM/Fugene mixture was then added to a microfuge tube containing DNA plasmid, mixed and then incubated×15 minutes at RT. The medium on the 293T/17 cells was refreshed, and the DNA/Fugene complex is added aseptically to each flask, rocked gently, and incubated at 37 C for 5 hours. Medium was then removed, and cells were washed once with PBS in the flask. Trypsin 0.05% (3 mL) was added and cells incubated for three minutes. Room temperature MEM+10% Tet system FBS was added and cells were mixed gently, and counted using the Vi-cell. Cells were seeded at 100,000 cells/mL in 50 μL MEM/10% Tet FBS/Pen/Strep to a 384 well black/clear poly-D-lysine coated plate containing test agent diluted in DMSO. The final top concentration of test compound was 40 μM. The total concentration of DMSO did not exceed 0.2% (v/v). Plates were incubated×30 minutes at RT in low-airflow area, followed by incubation at 37° C. under 5% CO₂ for 24 hours. Medium was aspirated from all wells of assay plates prior to fixation and permeabilization with ice cold (−20° C.) methanol (90 μL/well) for ten minutes. Plates were rinsed with PBS three times on BioTek ELx405. PBS was removed with a final aspiration, and Odyssey blocking buffer (50 μL/well) was added to each well and incubated for one hour at RT. Primary antibody solution was prepared (anti-trimethyl-MEKK2 at 1:600 dilution plus mouse anti-flag antibody at 1:10,000 dilution in diluent (Odyssey Blocking buffer+0.1% Tween 20)) and 20 μL per well was dispensed using the Multidrop Combi. Assay plates were then sealed with foil, and incubated overnight at 4° C. Plates were washed five times with PBS-Tween (1X) on Biotek ELx405 and blotted on paper towel to remove excess reagent. Detection antibody solution (IRDye 800 CW goat anti-rabbit IgG diluted 1:400 in diluent (Odyssey Blocking buffer+0.1% Tween 20), plus IRDye 680CW goat anti-mouse IgG at 1:500 in diluent (Odyssey Blocking buffer+0.1% Tween 20) was added (20 μL/well) and incubated in dark for one hour at RT. Plates were then washed four times with PBS-T (1X) on ELx405. A final rinse with water was performed (115 μL/well×three washes on the ELx405). Plates were then centrifuged upside down, on paper towel, at 200×g to remove excess reagent. Plates were left to dry in dark for one hour. The Odyssey Imager was used to measure the integrated intensity of 700 and 800 wavelengths at resolution of 84 μm, medium quality, focus offset 4.0, 700 channel intensity=3.5 to measure the MEKK2-flag signal, 800 channel intensity=5 to measure the Trimethyl-MEKK2 signal of each well.

Calculations:

First, the ratio for each well was determined by:

( Trimethyl   MEKK   2   800   nm   value flag   tagged   MEKK   2   700   nm   value )

Each plate included fourteen control wells of DMSO only treatment (Minimum Inhibition) as well as fourteen control wells for maximum inhibition (Background). The average of the ratio values for each control type was calculated and used to determine the percent inhibition for each test well in the plate. Reference compound was serially diluted two-fold in DMSO for a total of nine test concentrations, beginning at 40 μM. Percent inhibition was calculated (below).

Percent   Inhibition = 100 - ( ( ( individual   Test   Sample   Ratio ) - ( Background   Avg   Ratio ) ( Minimum   inhibition   Ratio )  ( Background   Average   Ratio ) ) * 100 )

Non-linear regression curves were generated to calculate the IC₅₀ and dose-response relationship using triplicate wells per concentration of compound.

SMYD3 cell assay data for representative Compounds of the Disclosure are presented in Table 1 in the column titled “SMYD3 Cell IC₅₀ (μM).”

Example 21

SMYD2 Biochemical Assay

General Materials

S-adenosylmethionine (SAM), S-adenosylhomocysteine (SAH), bicine, Tween20, dimethylsulfoxide (DMSO), bovine skin gelatin (BSG), and Tris(2-carboxyethyl)phosphine hydrochloride (TCEP) were purchased from Sigma-Aldrich at the highest level of purity possible. 3H-SAM was purchase from American Radiolabeled Chemicals with a specific activity of 80 Ci/mmol. 384-well streptavidin Flashplates were purchased from PerkinElmer.

Substrates

Peptide was synthesized with a N-terminal linker-affinity tag motif and a C-terminal amide cap by 21^st Century Biochemicals. The peptide was high high-performance liquid chromatography (HPLC) purified to greater than 95% purity and confirmed by liquid chromatography mass spectrometry (LC-MS). The sequence was ARTKQTARKSTGGKAPRKQLATKAARKSA(K-Biot)-amide. (SEQ ID No: 3)

Production of Recombinant SMYD2 Enzymes for Biochemical Enzyme Activity Assays

Full length SMYD2 (NP_064582.2) was cloned into a pFastbac-Htb-lic vector with an N-terminal His6 tag and FLAG tag, preceded by a TEV protease cleavage site. The protein was expressed in Sf9 insect cells. Cells were resuspended in lysis buffer (25 mM HEPES-NaOH, pH 7.5, 200 mM NaCl, 5% glycerol, and 5 mM β-ME) and lysed by sonication. The protein was purified by Ni-NTA (Qiagen), followed by TEV cleavage to remove the His6 tag, subtractive Ni-NTA (Qiagen), and gel filtration chromatography using an S200 column (GE Healthcare). Purified protein was stored in 20 mM Tris-HCl, pH 8.0, 100 mM NaCl. and 1 mM TCEP.

General Procedure for SMYD2 Enzyme Assays on Peptide Substrates

The assays were all performed in a buffer consisting of 20 mM Bicine (pH=7.6), 1 mM TCEP, 0.005% Bovine Skin Gelatin, and 0.002% Tween20, prepared on the day of use. Compounds in 100% DMSO (1 ul) were spotted into a polypropylene 384-well V-bottom plates (Greiner) using a Platemate Plus outfitted with a 384-channel head (Thermo Scientific). DMSO (1 ul) was added to Columns 11, 12, 23, 24, rows A-H for the maximum signal control and 1 ul of SAH, a known product and inhibitor of SMYD2, was added to columns 11, 12, 23, 24, rows I-P for the minimum signal control. A cocktail (40 ul) containing the SMYD2 enzyme was added by Multidrop Combi (Thermo-Fisher). The compounds were allowed to incubate with SMYD2 for 30 min at room temperature, then a cocktail (10 ul) containing ³H-SAM and peptide was added to initiate the reaction (final volume=51 ul). The final concentrations of the components were as follows: SMYD2 was 1.5 nM, ³H-SAM was 10 nM, and peptide was 60 nM, SAH in the minimum signal control wells was 1000 uM, and the DMSO concentration was 2%. The assays were stopped by the addition of non-radioactive SAM (10 ul) to a final concentration of 600 uM, which dilutes the ³H-SAM to a level where its incorporation into the peptide substrate is no longer detectable. 50 ul of the reaction in the 384-well polypropylene plate was then transferred to a 384-well Flashplate and the biotinylated peptides were allowed to bind to the streptavidin surface for at least 1 hour before being washed three times with 0.1% Tween20 in a Biotek ELx405 plate washer. The plates were then read in a PerkinElmer TopCount plate reader to measure the quantity of ³H-labeled peptide bound to the Flashplate surface, measured as disintegrations per minute (dpm) or alternatively, referred to as counts per minute (cpm).

% Inhibition Calculation

 %   inh = 100 - ( dpm ? - dpm ? dpm ? - dpm m   i   n ) × 100 ?  indicates text missing or illegible when filed 

Where dpm=disintegrations per minute, cmpd=signal in assay well, and min and max are the respective minimum and maximum signal controls.

Four-Parameter IC50 Fit

%   inhibition = Bottom + Top - Bottom ( 1 + ( IC 50 / [ I ] ) Hill   coefficient )

Where top and bottom are the normally allowed to float, but may be fixed at 100 or 0 respectively in a 3-parameter fit. The Hill Coefficient normally allowed to float but may also be fixed at 1 in a 3-parameter fit. I is the compound concentration.

SMYD2 biochemical assay data for representative Compounds of the Disclosure are presented in Tables 2 and 3 in the column titled “SMYD2 Biochem IC₅₀ (μM).”

Having now fully described this invention, it will be understood by those of ordinary skill in the art that the same can be performed within a wide and equivalent range of conditions, formulations, and other parameters without affecting the scope of the invention or any embodiment thereof.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

All patents and publications cited herein are fully incorporated by reference herein in their entirety.