ClassID:

112529

C12P41/005 - 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 carboxylic acid groups in the enantiomers or the inverse reaction

Recent Application in this class:
#1
20260035372
2026-02-05

METHOD FOR PREPARING (R)-KETOROLAC AND USE THEREOF

#2
20220017935
2022-01-20

Method for enzymatic resolution of chiral substances

#3
20200123586
2020-04-23

Method for the preparation of (3E,7E)-homofarnesic acid or (3E,7E)-homofarnesic acid ester

#4
20200123578
2020-04-23

Process for the preparation of triple-bond-containing optically active carboxylic acids, carboxylate salts and carboxylic acid derivatives

#5
20200115329
2020-04-16

DIFLUOROALKYLCYCLOPROPYL AMINO ACIDS AND ESTERS, AND SYNTHESES THEREOF

#6
20200095230
2020-03-26

SYNTHETIC ROUTE TO ANTI-VIRAL AGENTS

#7
20200024621
2020-01-23

ENZYMATIC PROCESS FOR THE PREPARATION OF (1S,2R)-2-(DIFLUOROMETHYL)-1-(PROPOXYCARBONYL)CYCLOPROPANECARBOXYLIC ACID

#8
20190360011
2019-11-28

sp. and use thereof in selective resolution preparation of (S)-α-ethyl-2-oxo-1-pyrrolidineacetate

#9
20190084966
2019-03-21

Synthetic route to anti-viral agents

#10
20180230095
2018-08-16

Method for producing pyrrole derivative, and intermediate thereof

#11
20180155747
2018-06-07

Lactate Production Process

#12
20170369438
2017-12-28

Method for producing pyrrole derivative, and intermediate thereof

#13
20170145468
2017-05-25

Process for producing optically active 2-alkyl-1,1,3-trialkoxycarbonylpropane

#14
20170130213
2017-05-11

Enantioselective modified esterase enzyme and method for the production thereof

#15
20160237034
2016-08-18

Method for producing pyrrole derivative, and intermediate thereof

#16
20150344919
2015-12-03

Process for the preparation of pregabalin

#17
20150252393
2015-09-10

Hydrolase protein

#18
20140099681
2014-04-10

Process for producing optically active succinimide derivatives and intermediates thereof

#19
20130210091
2013-08-15

Process for the enzymatic synthesis of (7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-triene-7-carboxylic acid or esters thereof, and application in the synthesis of ivabradine and salts thereof

#20
20130196388
2013-08-01

Process for producing optically active succinimide derivatives

#21
20130130338
2013-05-23

Hydrolase protein

#22
20130096339
2013-04-18

Method for producing 1-amino-1-alkoxycarbonyl-2-vinylcyclopropane

#23
20130071899
2013-03-21

Process for producing Aliskiren

#24
20130034885
2013-02-07

Process for the enzymatic production of carnitine from beta-lactones

#25
20120220014
2012-08-30

Polypeptide having esterase activity and recombinant esterase and use thereof

#26
20120135441
2012-05-31

ENZYMES AND METHODS FOR RESOLVING AMINO VINYL CYCLOPROPANE CARBOXYLIC ACID DERIVATIVES

#27
20120034660
2012-02-09

Process for producing optically active succinimide derivatives and intermediates thereof

#28
20110224295
2011-09-15

Crystalline form of a (3S)-aminomethyl-5-methyl-hexanoic acid prodrug and methods of use

#29
20110165636
2011-07-07

Process for the stereoselective enzymatic hydrolysis of 5-methyl-3-nitromethyl-hexanoic acid ester

#30
20110117616
2011-05-19

Method for producing (1S,2R)-2-chloro-2-fluorocyclopropanecarboxylic acid

#31
20100330625
2010-12-30

PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE INDOLINE-2-CARBOXYLIC ACID OR DERIVATIVE THEREOF

#32
20100248337
2010-09-30

PROCESS FOR THE PRODUCTION OF (s)-5-CHLORO-2-ISOPROPYLPENT-4-ENOIC ACID ESTERS

#33
20100240107
2010-09-23

Process for producing optically active 2-alkyl-1,1,3-trialkoxycarbonylpropane

#34
20100151541
2010-06-17

Polypeptide having esterase activity and recombinant esterase and use thereof

#35
20100087525
2010-04-08

STEREOSELECTIVE ENZYMATIC SYNTHESIS OF (S) OR (R)-ISO-BUTYL-GLUTARIC ESTER

#36
20090299093
2009-12-03

Preparation of Gamma-Amino Acids Having Affinity for The Alpha-2-Delta Protein

#37
20090298141
2009-12-03

Continuous Chemical Proceses in Centrifugal Contact Separators

#38
20090270516
2009-10-29

Process for producing optically active theaspirane

#39
20090269821
2009-10-29

Method of enzymatic optical resolution of racemic 4-hydroxy-1,2,3,4-tetrahydroquinoline

#40
20090215809
2009-08-27

Crystalline form of a (3S)-aminomethyl-5-methyl-hexanoic acid prodrug and methods of use

#41
20090192325
2009-07-30

Enantiomerically resolving acyloxyalkyl thiocarbonates used in synthesizing acyloxyalkyl carbamate prodrugs

#42
20090118534
2009-05-07

Method of producing optically active (S)-7-hydroxy-6-methylheptan-2-one and precursor thereof

#43
20090117626
2009-05-07

Process for preparing carboxylic acid using surfactant-modified enzyme

#44
20090042260
2009-02-12

Process for preparing optically active (S or R)-α amino acid and (R or S)-α amino acid ester in one phase organic reaction medium

#45
20090035831
2009-02-05

Method of producing enantioselective immobilized candida rugosa lipase

#46
20090011475
2009-01-08

Method for production of optically active biphenylalanine compound or salt or ester thereof

#47
20080311635
2008-12-18

PROCESS FOR THE PREPARATION OF (S)(+)-3-(AMINOMETHYL)-5-METHYLHEXANOIC ACID

#48
20080207916
2008-08-28

Radiolabelled Phenylethyl Imidazole Carboxylic Acid Ester Derivatives

#49
20080131944
2008-06-05

Process for the production of ()-5-chloro-2-isopropylpent-4-enoic acid esters

#50
20080115247
2008-05-15

Chemical Process

#51
20080038802
2008-02-14

Method of making optically active ester derivatives and their acids from racemic esters

#52
20080038785
2008-02-14

Processes for preparing optically active (S or R)-β-amino acid and optically active (R or S)-β-amino acid ester, and β-amino acid 2-alkoxyethyl ester and optically active (S or R)-β amino acid 2-alkoxyethyl ester

#53
20080026433
2008-01-31

Use of enzymatic resolution for the preparation of intermediates of pregabalin

#54
20080020423
2008-01-24

Enzyme reactions in miniemulsions

#55
20070191630
2007-08-16

PROCESSES FOR PRODUCING (4E)-5-CHLORO-2-ISOPROPYL-4-PENTENOATE AND OPTICALLY ACTIVE FORM THEREOF

#56
20070166814
2007-07-19

Synthesis of intermediates for the preparation of pramipexol

#57
20070141684
2007-06-21

Preparation of gamma-amino acids having affinity for the alpha-2-delta protein

#58
20070128705
2007-06-07

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

#59
20070077632
2007-04-05

Method for preparing (s)-indoline-2-carboxylic acid and (s)-indoline-2-carboxylic acid methyl ester using hydrolytic enzyme

#60
20070032542
2007-02-08

Process for the preparation of enantiopure pyrrolidin-2-one derivatives

#61
20060257988
2006-11-16

Chlorohydrin and hydroxycarboxylic ester asymmetric hydrolase gene

#62
20060257980
2006-11-16

Macrocyclic isoquinoline peptide inhibitors of hepatitis C virus

#63
20060252134
2006-11-09

Enantioselective oligomerization of alpha-hydroxy carboxylic acids and alpha-amino acids

#64
20060223152
2006-10-05

Optically active 2-allylcarboxylic acid derivative and process for producing the same

#65
20060211097
2006-09-21

Process for producing enantiopure β-amino acid derivatives, and enantiopure β-amino acid derivatives

#66
20060178433
2006-08-10

3-Amino-3-arylpropionic acid n-alkyl esters, process for production thereof, and process for production of optically active 3-amino-3-arylpropionic acids and esters of the antipodes thereto

#67
20060134763
2006-06-22

Stereoselective process for the production of dioxolane nucleoside analogues

#68
20060014947
2006-01-19

Process for producing benzoxazine derivative and production intermediate thereof

#69
20050196850
2005-09-08

Enantioselective immobilized lipase

#70
20050192441
2005-09-01

Methods for the preparation of stereoisomerically enriched amines

#71
20050170473
2005-08-04

Process for enzymatically producing either optically active N-substituted β-amino acids or esters thereof or optically active N-substituted 2-homopipecolic acids or esters thereof

#72
20050142646
2005-06-30

Process for the enzymatic preparation of enantiomer-enriched β-amino acids

#73
20050106690
2005-05-19

Process for producing optically active octahydro-1H-indole-2-carboxylic acid

#74
20050090432
2005-04-28

Macrocyclic isoquinoline peptide inhibitors of hepatitis C virus

#75
20050065204
2005-03-24

Process for the preparation of enantiopure pyrrolidin-2-one derivatives

#76
20050027119
2005-02-03

Process for producing benzoxazine derivative and production intermediate thereof

#77
20050009158
2005-01-13

Process for enzymatically resolving an enantiomeric mixture of alpha-hydroxy acids