ClassID:

92721

C07C231/18 - CPC Classification

Classification description:

Preparation of carboxylic acid amides; Preparation of optical isomers by stereospecific synthesis

Recent Application in this class:
#1
20240409498
2024-12-12

PROCESS OF MAKING 3-(4'-AMINOPHENYL)-2-METHOXYPROPIONIC ACID, AND ANALOGS AND INTERMEDIATES THEREOF

#2
20240246899
2024-07-25

PROCESSES FOR THE PREPARATION OF (S)-TERT-BUTYL 4,5-DIAMINO-5-OXOPENTANOATE

#3
20230234914
2023-07-27

Processes for the preparation of ()-tert-butyl 4,5-diamino-5-oxopentanoate

#4
20220194894
2022-06-23

Process of making 3-(4′-aminophenyl)-2-methoxypropionic acid, and analogs and intermediates thereof

#5
20210380503
2021-12-09

METHOD FOR THE STEREOISOMERIZATION OF CHIRAL COMPOUNDS

#6
20210253523
2021-08-19

Brivaracetam intermediate, preparation method therefor, and preparation method for brivaracetam

#7
20200299228
2020-09-24

Processes for the preparation of (S)-tert-butyl 4,5- diamino-5-oxopentanoate

#8
20190084924
2019-03-21

Processes for the preparation of (S)-tert-butyl 4,5-diamino-5-oxopentanoate

#9
20180327343
2018-11-15

Compositions and methods for preparing β,γ-unsaturated acids

#10
20180141966
2018-05-24

Chiral spiro phosphorus-nirogen-sulphur tridentate ligand, preparation method and application thereof

#11
20160102045
2016-04-14

Method for synthesizing optically active α-amino acid using chiral metal complex comprising axially chiral N-(2-acylaryl)-2-[5,7-dihydro-6H-dibenzo[c,e]azepin-6-yl] acetamide compound and amino acid

#12
20150225334
2015-08-13

Acetamide stereoisomer

#13
20150148543
2015-05-28

Methods and compositions for the synthesis of multimerizing agents

#14
20150073170
2015-03-12

Kinetic resolution

#15
20150051416
2015-02-19

Rhodium catalyst and method for producing amine compound

#16
20140350284
2014-11-27

Stereoselective synthesis of metyrosine

#17
20140243537
2014-08-28

Process for the preparation of oseltamivir and methyl 3-epi-shikimate

#18
20140213800
2014-07-31

Device and method for evaluating organic material for organic solar cell

#19
20140171649
2014-06-19

Methods and compositions for the synthesis of multimerizing agents

#20
20140155648
2014-06-05

Manufacture of a triiodinated contrast agent

#21
20140135300
2014-05-15

Acetamide stereoisomer

#22
20130296607
2013-11-07

Acetamide stereoisomer

#23
20130190533
2013-07-25

Process for the preparation of amino acid derivatives

#24
20130172597
2013-07-04

Method for producing optically active 1,2-bis(dialkylphosphino)benzene derivative

#25
20130071899
2013-03-21

Process for producing Aliskiren

#26
20130035225
2013-02-07

ORGANIC/INORGANIC HYBRID CATALYTIC MATERIALS, THEIR PREPARATION, USE IN SELECTIVE PROCESSES AND REACTORS CONTAINING THEM

#27
20120330038
2012-12-27

Bis-phosphate compound and asymmetric reaction using the same

#28
20120330030
2012-12-27

Enantioselective Synthesis of y-amino-a, B-unsuturated carboxylic acid derivatives

#29
20120323040
2012-12-20

Process for synthesis of amino-methyl tetralin derivatives

#30
20120302790
2012-11-29

Process for the preparation of nitrogen substituted aminotetralins derivatives

#31
20120283463
2012-11-08

Intermediate compounds and processes for the preparation of tapentadol and related compounds

#32
20120277437
2012-11-01

Kinetic resolution

#33
20120157712
2012-06-21

Process for the production of 2-[4-(3- and 2-fluorobenzyloxy) benzylamino] propanamides

#34
20120136164
2012-05-31

NANOSTRUCTURED METALS

#35
20120095251
2012-04-19

Process for producing lacosamide

#36
20120046468
2012-02-23

Intermediates in the enantioselective synthesis of 3-(aminomethyl)-5-methyl-hexanoic acid

#37
20120029237
2012-02-02

Autocatalytic process for the synthesis of chiral propargylic alcohols

#38
20110295036
2011-12-01

Method for synthesis of (1S, 2R)-milnacipran

#39
20110263899
2011-10-27

Process for the preparation of amino acid derivatives

#40
20110263873
2011-10-27

Enantioselective synthesis of γ-amino-αβ-unsaturated carboxylic acid derivatives

#41
20110257408
2011-10-20

Enantioselective process for cycloalkenyl β-substituted alanines

#42
20110130591
2011-06-02

STEROSELECTIVE SYNTHESIS OF CERTAIN TRIFLUOROMETHYL-SUBSTITUTED ALCOHOLS

#43
20110124899
2011-05-26

METHOD FOR PREPARING COMBRETASTATIN

#44
20110118482
2011-05-19

Bidentate chiral ligands for use in catalytic asymmetric addition reactions

#45
20110104765
2011-05-05

Stereoselective synthesis of metyrosine

#46
20110098485
2011-04-28

Bidentate secondary phosphine oxide chiral ligands for use in asymmetric addition reactions

#47
20110028749
2011-02-03

Ruthenium compound and method for producing optically active aminoalcohol compound

#48
20110008852
2011-01-13

Convergent synthesis of renin inhibitors and intermediates useful therein

#49
20100324307
2010-12-23

Asymmetric synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid

#50
20100160682
2010-06-24

Process for synthesis of amino-methyl tetralin derivatives

#51
20100130749
2010-05-27

Methods for the production of C-8 lactam lactone compounds

#52
20100081841
2010-04-01

Asymmetric synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid

#53
20100048909
2010-02-25

Process for production of optically active-3-amino-2-hydroxypropionic cyclopropylamide derivatives and salts thereof

#54
20100041905
2010-02-18

Process for the Preparation of Substituted 2-Acetylamino-Alkoxyphenyl

#55
20100041893
2010-02-18

FORMATION OF TETRA-SUBSTITUTED ENAMIDES AND STEREOSELECTIVE REDUCTION THEREOF

#56
20090209787
2009-08-20

Method of preparing chiral cyclic β-aminocarboxamides

#57
20090203918
2009-08-13

Method for producing enantiomeric form of 2,3-diaminopropionic acid derivatives

#58
20090156678
2009-06-18

Process for the production of 2-[4-(3- and 2-fluorobenzyloxy) benzylamino] propanamides

#59
20090124820
2009-05-14

C1-Symmetric Bisphospine Ligands and Their Use in the Asymmetric Synthesis of Pregabalin

#60
20090099358
2009-04-16

Bisphospholanes for use as catalysts in asymmetric reactions

#61
20090069600
2009-03-12

Asymmetric synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid

#62
20090069596
2009-03-12

Asymmetric synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid

#63
20090069593
2009-03-12

Asymmetric synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid

#64
20090069578
2009-03-12

Asymmetric synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid

#65
20090062562
2009-03-05

Asymmetric synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid

#66
20090060922
2009-03-05

Acetamide stereoisomer

#67
20090054679
2009-02-26

Process for production of mono-substituted alkylated compound using aldimine or derivative thereof

#68
20090030212
2009-01-29

Enantioselective ring-opening of aziridines

#69
20090018340
2009-01-15

Formation of tetra-substituted enamides and stereoselective reduction thereof

#70
20080306264
2008-12-11

Cycloolefin phosphine ligands and their use in catalysis

#71
20080293953
2008-11-27

Chiral spiro compounds and their use in asymmetric catalytic reactions

#72
20080287698
2008-11-20

Ferrocenyl ligands for homogeneous, enantioselective hydrogenation catalysts

#73
20080207950
2008-08-28

Enantioselective Synthesis of a Sterically Hindered Amine

#74
20080058522
2008-03-06

Process for the preparation of enantiomerically enriched beta amino acid derivatives

#75
20080051602
2008-02-28

Chiral 3-carbamoylmethyl-5-methyl hexanoic acids, key intermediates for the synthesis of (S)-Pregabalin

#76
20080045747
2008-02-21

Chiral 3-carbamoylmethyl-5-methyl hexanoic acids, key intermediates for the synthesis of (S)-pregabalin

#77
20070293694
2007-12-20

Processes for the preparation of R-(+)-3-(carbamoyl methyl)-5-methylhexanoic acid and salts thereof

#78
20070238778
2007-10-11

Method for producing enantiomeric form of 2,3-diaminopropionic acid derivatives

#79
20070197827
2007-08-23

Asymmetric synthesis of (S)-(+)-3-(aminomethyl)-5-methylhexanoic acid

#80
20070197799
2007-08-23

Novel bisphosphane catalysts

#81
20070191636
2007-08-16

Chiral 3-carbamoylmethyl-5-methyl hexanoic acids, key intermediates for the synthesis of (S)-Pregabalin

#82
20070179301
2007-08-02

Bisphosphines as bidentate ligands

#83
20070161804
2007-07-12

Method of enantioselective nucleophilic addition reaction of enamide to imine and synthesis method of α-amino-γ-keto acid ester

#84
20070155971
2007-07-05

Chiral diphosphorus compounds and their transition metal complexes

#85
20070123733
2007-05-31

Bisphosphines as bidentate ligands

#86
20070037976
2007-02-15

Method for producing an optically active nitro compound

#87
20060229473
2006-10-12

Substituted paracyclophane derivatives in asymmetric catalysis

#88
20060194977
2006-08-31

Process for the preparation of chiral beta amino acid derivatives by asymmetric hydrogenation

#89
20060183933
2006-08-17

Method of hydroaminating N-alkenoylcarbamates with primary aromatic amines

#90
20060183930
2006-08-17

Chiral monophosphorus compounds

#91
20060149080
2006-07-06

Process for preparing optically active cyclic amines

#92
20060094887
2006-05-04

Transition metal complex having diphosphine compound as ligand

#93
20060089469
2006-04-27

Hydroxy diphosphines and their use in catalysis

#94
20060069281
2006-03-30

Diazaphospholane ligands for asymmetric catalysis

#95
20060047128
2006-03-02

Chiral spiro compounds and their use in asymmetric catalytic reactions

#96
20060014956
2006-01-19

Asymmetric Michael and Aldol additions using bifunctional cinchona-alkaloid-based catalysts

#97
20050288486
2005-12-29

Process for the synthesis of intermediates useful for the synthesis of tubulin inhibitors

#98
20050261276
2005-11-24

Sulphones for inhibition of gamma secretase

#99
20050240007
2005-10-27

Ferrocenyl ligands and method for the production of such ligands

#100
20050228190
2005-10-13

C1-symmetric bisphosphine ligands and their use in the asymmetric synthesis of pregabalin

#101
20050209455
2005-09-22

Bisphosphines as bidentate ligands

#102
20050171082
2005-08-04

Highly enantiomerically pure lactam-substituted propanoic acid derivatives and methods of making and using same

#103
20050119495
2005-06-02

P-chiral phospholanes and phosphocyclic compounds and their use in asymmetric catalytic reactions

#104
20050107608
2005-05-19

Ligands for use in catalytic processes

#105
20050107248
2005-05-19

Metallic catalysts for chemo-, regio- and stereoselective reactions, and corresponding precursors

#106
20050080047
2005-04-14

Chiral diphosphorus compounds and their transition metal complexes