ClassID:

92722

C07C231/20 - CPC Classification

Classification description:

Preparation of carboxylic acid amides; Preparation of optical isomers by separation of optical isomers

Recent Application in this class:
#1
20230202968
2023-06-29

Process for preparing 2-methyl-N-(2′-methylbutyl)butanamide

#2
20230099631
2023-03-30

PROCESS FOR THE SYNTHESIS OF S-BEFLUBUTAMID USING ASYMMETRIC HYDROGENATION

#3
20220411363
2022-12-29

Process for preparing 2-methyl-N-(2′-methylbutyl)butanamide

#4
20210188904
2021-06-24

Method for producing lacosamide and intermediate thereof

#5
20210163695
2021-06-03

Chiral resolution method mimicking magnetic beneficiation and the magnetic nano-inhibitors for selective enrichment

#6
20200087227
2020-03-19

Method for producing optically active substance, optically active substance, method for producing chiral molecule, and chiral molecule

#7
20180371013
2018-12-27

Method for producing lacosamide and intermediate thereof

#8
20160318851
2016-11-03

Process for preparing levomilnacipran

#9
20140179947
2014-06-26

Process for manufacture and resolution of 2-acylamino-3-diphenylpropanoic acid

#10
20130178651
2013-07-11

Preparation method of high-optical purity N2-[1 -(S)-ethoxycarbonyl-3-phenylpropyl]-N6-trifluoroacetyl-L-lysine

#11
20130030216
2013-01-31

Process for the preparation of lacosamide

#12
20120289744
2012-11-15

PROCESS FOR PREPARING OPTICALLY PURE MILNACIPRAN AND ITS PHARMACEUTICALLY ACCEPTABLE SALTS

#13
20120184774
2012-07-19

PROCESS FOR THE PREPARATION OF PHARMACEUTICALLY ACCEPTABLE SALTS OF RACEMIC MILNACIPRAN AND ITS OPTICAL ENANTIOMERS THEREOF

#14
20120101297
2012-04-26

Production of trans-4-aminocyclopent-2-ene-1-carboxylic acid derivatives

#15
20120016151
2012-01-19

Process for manufacture and resolution of 2-acylamino-3-diphenylpropanoic acid

#16
20120015443
2012-01-19

Chiral selectors and stationary phases for separating enantiomer mixtures

#17
20110263899
2011-10-27

Process for the preparation of amino acid derivatives

#18
20110071074
2011-03-24

Deuterated hepatitis C protease inhibitors

#19
20100298568
2010-11-25

Processes and intermediates for preparing steric compounds

#20
20100179345
2010-07-15

Process for the preparation of pregabalin

#21
20100016636
2010-01-21

Process for preparing optical pure milnacipran and its pharmaceutically accepted salts

#22
20100010242
2010-01-14

Process for preparing β-amino-α-hydroxycarboxamides

#23
20090229352
2009-09-17

Chiral selectors and stationary phases for separating enantiomer mixtures

#24
20090192331
2009-07-30

Process for the preparation of (R)-(−)-3-(carbamoylmethyl)-5-methylhexanoic acid and of pregabalin and synthesis intermediates

#25
20090187017
2009-07-23

PROCESS FOR PREPARING ENANTIOMERICALLY ENRICHED BETA-AMINO ACID DERIVATIVES

#26
20090145197
2009-06-11

Optically enhanced chiral ionic liquids

#27
20080015368
2008-01-17

Process for preparing β-amino-α-hydroxycarboxamides

#28
20070287860
2007-12-13

Optical resolution of 3-carbamoylmethyl-5-methyl hexanoic acid

#29
20070287859
2007-12-13

Optical resolution of 3-carbamoylmethyl-5-methyl hexanoic acid

#30
20070287748
2007-12-13

Optical resolution of 3-carbamoylmethyl-5-methyl hexanoic acid

#31
20070244334
2007-10-18

Processes and intermediates for preparing steric compounds

#32
20070225297
2007-09-27

Deuterated hepatitis C protease inhibitors

#33
20070043241
2007-02-22

Optical resolution of 3-carbamoylmethyl-5-methylhexanoic acid

#34
20060014955
2006-01-19

Optically enhanced chiral ionic liquids

#35
20050065367
2005-03-24

Method for producing optically active beta-phenylalanine

#36
20050065366
2005-03-24

Method for producing optically active β-phenylalanine compounds