ClassID:

112528

C12P41/004 - CPC Classification

Classification description:

Processes using enzymes or microorganisms to separate optical isomers from a racemic mixture by ester formation, lactone formation or the inverse reactions by esterification of alcohol- or thiol groups in the enantiomers or the inverse reaction

Recent Application in this class:
#1
20240301463
2024-09-12

POLYPEPTIDE HAVING ESTERIFICATION ACTIVITY FOR L-MENTHOL AND/OR HYDROLYZING ACTIVITY FOR L-MENTHOL ESTER

#2
20220017935
2022-01-20

Method for enzymatic resolution of chiral substances

#3
20160281122
2016-09-29

Process of chiral resolution of cyclic and acyclic acetates to enantiomerically pure (R)-alcohols

#4
20160122303
2016-05-05

Biocatalyzed synthesis of the optically pure (R) and (S) 3-methyl-1,2,3,4-tetrahydroquinoline and their use as chiral synthons for the preparation of the antithrombic (21R)- and (21S)-argatroban

#5
20150126761
2015-05-07

Process for the preparation of treprostinil and derivatives thereof

#6
20140370556
2014-12-18

Method for preparing (R)-praziquantel

#7
20140370555
2014-12-18

Method for preparing (R)-praziquantel

#8
20140212957
2014-07-31

PRODUCTION OF OPTICALLY PURE PROPANE-1,2-DIOL

#9
20120270282
2012-10-25

Penicillin-G acylases

#10
20120171738
2012-07-05

Enzymatically catalyzed method of preparing mono-acylated polyols

#11
20120157693
2012-06-21

Process for manufacture of optically active 2-(acyloxymethyl)-1,3-oxathiolanes

#12
20120135483
2012-05-31

Preparation of isomerically pure substituted cyclohexanols

#13
20110207186
2011-08-25

Isoforms of pig liver esterase

#14
20110118500
2011-05-19

Method for producing optically active α-ionone

#15
20110053957
2011-03-03

Malonate salt of 4-((1R,3S)-6-chloro-3-phenylindan-1-yl)-1,2,2-trimethylpiperazine and uses of same

#16
20100324291
2010-12-23

Processes for 4-((1R,35)-6-Chloro-3-phenylindan-1-yl)-1,2,2-trimethylpiperazine or a salt thereof

#17
20100304451
2010-12-02

PROCESS FOR THE PREPARATION OF AN ENANTIOMERICALLY AND/OR DIASTEREOMERICALLY ENRICHED ESTER, THIOESTER, ALCOHOL OR THIOL

#18
20100240746
2010-09-23

STEREOISOMERS OF TRICYCLODECAN-9-YL-XANTHOGENATE

#19
20100178678
2010-07-15

Method for producing cyclopent-4-ene-1,3-diol or cyclopent-4-ene-1,3-diol derivatives

#20
20100143978
2010-06-10

Process for manufacture of optically active 2-(acyloxymethyl)-1,3-oxathiolanes using enzymatic resolution

#21
20100143968
2010-06-10

Penicillin-G acylases

#22
20100089831
2010-04-15

Preparation and use of chiral zeolites for liquid chromatography

#23
20100081849
2010-04-01

REACTION SYSTEM

#24
20100041918
2010-02-18

CYCLOPENTENE DIOL MONOACETATE DERIVATIVES

#25
20100036150
2010-02-11

MANDELIC ACID DERIVATIVES AND PREPARATION THEREOF

#26
20090311761
2009-12-17

Process or synthesis of ()- and ()-3-hydroxy-beta-ionone, and their transformation to zeaxanthin and beta-cryptoxanthin

#27
20090280558
2009-11-12

Process For Dynamic Kinetic Resolution (DKR) Of Racemic Compounds In (Hydro) Fluorocarbon Solvents

#28
20090238933
2009-09-24

Process for synthesis of (3R,3′R)-zeaxanthin and (3R,3′S;meso)-zeaxanthin from (3R,3′R,6′R)-lutein via (3R)-3′,4′-anhydrolutein

#29
20090233337
2009-09-17

Chemoenzymatic process for the stereoselective preparation of (R)-γ-amino-β-hydroxybutyric acid or (R)-carnitine from 3,4-dihydroxybutanenitrile

#30
20090221046
2009-09-03

Biocatalytic racemisation of alpha-hydroxyketones

#31
20090216039
2009-08-27

Method for producing optically active α-ionone

#32
20090155865
2009-06-18

Esterases and their use for processes for kinetic resolution of butinolesters

#33
20090035831
2009-02-05

Method of producing enantioselective immobilized candida rugosa lipase

#34
20090029410
2009-01-29

Lipases from thermophilic anaerobes

#35
20080299623
2008-12-04

Enzyme catalysis in the presence of ionic liquids

#36
20080249310
2008-10-09

Process For the Preparation of (2R,3R)-2-Hydroxy-3-Amino-3-Aryl-Propionamide and (2R,3R)-2-Hydroxy-3-Amino-3-Aryl-Propionic Acid Alkyl Ester

#37
20080138856
2008-06-12

Enzymatic Enantioselective Ester or Amide Hydrolysis or Synthesis

#38
20070249025
2007-10-25

ENZYMATIC RESOLUTION OF SELECTIVE ESTROGEN RECEPTOR MODULATORS

#39
20070238887
2007-10-11

Chemo-enzymatic process for the preparation of escitalopram

#40
20070197788
2007-08-23

METHOD FOR THE PREPARATION OF ENANTIOMER FORMS OF CIS-CONFIGURED 3-HYDROXYCYCLOHEXANE CARBOXYLIC ACID DERIVATIVES USING HYDROLASES

#41
20070196904
2007-08-23

Method for the production of chiral secondary alcohols

#42
20070128705
2007-06-07

Enzymatic process for stereo-selective preparation of chemical compounds in hydrofluorocarbon solvents

#43
20070026508
2007-02-01

Enzymatic method of making 1,2-diol derivatives and their esters

#44
20060281759
2006-12-14

Hydrogen succinate salts of trans-4-((1R, 3S)-6-chloro-3-phenylindan-1-YL)-1,2,2-trimethylpiperazine and the use as a medicament

#45
20060281758
2006-12-14

-1(6-chloro-3-phenylindan-1-yl)-3,3-dimethylpiperazine

#46
20060275880
2006-12-07

Selective enzymatic esterfication and solvolysis of epimeric vitamin D analog and separation and epimerization of the epimers

#47
20060247453
2006-11-02

Enzymatic transformation of a prostaglandin (bimatoprost) intermediate

#48
20060234362
2006-10-19

Enzymatic method of making 1,2-diol derivatives and their esters with succine anhydride

#49
20060211096
2006-09-21

Enzyme catalysis in the presence of ionic liquids

#50
20060205056
2006-09-14

Enzymatic method of making ethyl 3-hydroxy-3-phenylpropionate and their esters

#51
20060178391
2006-08-10

Method of preparing enantiomers of indole-2,3-dione-3-oxime derivatives

#52
20060172397
2006-08-03

Preparation of chiral propargylic alcohol and ester intermediates of himbacine analogs

#53
20060141606
2006-06-29

Enantioconvergent chemoenzymatic synthesis of ()-γ-amino-β-hydroxybutyric acid (()-GABOB)

#54
20060141591
2006-06-29

Method for producing optically active chroman-carboxylate

#55
20060046287
2006-03-02

Enantioselective biotransformation for preparation of protein tyrosine kinase inhibitor intermediates

#56
20050267306
2005-12-01

Protected 3,5-dihydroxy-2,2-dimethyl-valeronitriles for the synthesis of epothilones and epothilone derivatives and process for the production

#57
20050196850
2005-09-08

Enantioselective immobilized lipase

#58
20050176119
2005-08-11

Process for the preparation of 1-(3-trifluoromehylphenyl)-propan-2-ol enantiomers

#59
20050153404
2005-07-14

Anti-kazlauskas lipases

#60
20050130282
2005-06-16

Resolution of chiral compounds using aminocyclopentadienyl ruthenium catalysts

#61
20050106692
2005-05-19

Process for preparation of optically active allenes

#62
20050032182
2005-02-10

Process for the enantioselective preparation of secondary alcohols by lipase-catalyzed solvolysis of the corresponding acetoacetic esters

#63
20050026260
2005-02-03

Enzymatic resolution of propylene glycol alkyl (or aryl) ethers and ether acetates