Patents
Sitemap › C12 - Biochemistry; Beer; Spirits; Wine; Vinegar; Microbiology; Enzymology; Mutation or genetic engineering › C12P - Fermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture › C12P 41 - Processes using enzymes or micro-organisms to separate optical isomers from a racemic mixture
Patents for C12P 41 - Processes using enzymes or micro-organisms to separate optical isomers from a racemic mixture (4,784)
11/1996
11/19/1996CA1338724C Process for preparing (r)-3-chloro-1,2-propanediol
11/19/1996CA1338723C Process for preparing 3-chloro-1,2-propanediol
11/14/1996WO1996035775A1 BIOTECHNICAL PRODUCTION PROCESS OF PIPERAZINE R-α-CARBOXYLIC ACIDS AND PIPERAZINE S-α-CARBOXYLIC ACID AMIDE
11/14/1996CA2217067A1 Biotechnical production process of piperazine r-.alpha.-carboxylic acids and piperazine s-.alpha.-carboxylic acid amide
11/12/1996US5574182 Optically active compounds having plural chiral centers and production thereof
11/12/1996US5573949 Enzymatic process for the preparation of optically active Tetrahydro-2-naphthoic acids
11/07/1996WO1996034975A1 Enzymatic hydrolysis of 3,3-diethyl-4-[(4-carboxy)phenoxy]-2-azetidinone esters
11/07/1996CA2218881A1 Enzymatic hydrolysis of 3,3-diethyl-4-[(4-carboxy)phenoxy]-2-azetidinone esters
11/06/1996EP0496001B1 Process for producing optically active 3-phenyl-1,3-propanediol
11/05/1996US5571704 Process for the preparation of intermediates useful for the synthesis of benzothiazepines
10/1996
10/30/1996EP0739978A2 Hydantoinase from agrobacterium tumefaciens and its use for the preparation of optically pure N-carbamyl-D-amino acids from racemic hydantoins
10/30/1996EP0658211B1 Enzymatic asymmetric reduction process to produce 4 h-thieno(2,3-6)thio pyrane derivatives
10/22/1996US5567851 Selectively positioning transesterification of a cyclohexene diol in the presence of lipase
10/22/1996US5567614 Enzymatic processes for resolution of enantiomeric mixtures of compounds useful as intermediates in the preparation of taxanes
10/16/1996CN1033044C Process for prepn. of optically active acids of 2-aryl alkane
10/15/1996US5565345 Reduction by the action of a microorganism
10/15/1996US5565344 Process for production of D-α-amino acids
10/09/1996EP0736606A1 Process for the enzymatic preparation of intermediates for the synthesis of befloxatone
10/03/1996WO1996030320A1 Preparation of cis-4-o-protected-2-cyclopentenol derivatives
10/02/1996EP0735143A1 Process for preparing D-amino acids
10/02/1996EP0735142A2 Process for producing (R)-styrene oxides
10/02/1996EP0734453A1 Phenylserine amides and the preparation of phenylserines/phenylserine amides
10/02/1996CN1132073A 1,3-oxathiolane nucleoside analogues
10/01/1996US5561057 Resolution of (RS)-ibuprofen by Candida antarctica catalyzed esterification with long chain alcohols while removing water
09/1996
09/26/1996WO1996029426A1 Catalytic antibody which hydrolyzes amino acid ester derivative enantioselectively
09/19/1996WO1996028437A1 Novel process for preparing 2,3-dihydro-benzofuranol derivatives
09/19/1996CA2215105A1 Novel process for preparing 2,3-dihydro-benzofuranol derivatives
09/18/1996EP0731843A1 Tyrosinase-activator protein fusion enzyme
09/10/1996US5554532 Serratia; resolution
09/06/1996WO1996027022A1 Process for preparing optically active amines
09/05/1996DE19507217A1 Verfahren zur Herstellung von optisch aktiven Aminen A process for producing optically active amines
09/03/1996US5552318 Enantioselective synthesis of d-amino acids
09/03/1996US5552317 Method for preparing optically active homophenylalanine and esters thereof using lipase from wheat germ or Candida lipolytica
08/1996
08/28/1996CN1129957A Process for producing D-amino acid by using composite immobilized enzyme preparation
08/22/1996DE19519717C1 New microorganism DSM 9771 for prepn of L-alpha-amino acids
08/21/1996EP0727494A1 Method for the enzymatic acylation of alcohols with alkoxyvinylacetates through transesterification
08/21/1996EP0726891A1 A METHOD FOR PREPARING $i(TERT)-LEUCINE AND ANALOGUES THEREOF IN ENANTIOMERIC FORM, AND INTERMEDIATES THEREIN
08/21/1996CA2169683A1 Process for the enzymatic acylation of alcohols with alkoxyvinyl acetates by transesterification
08/14/1996DE19523151A1 Racematspaltung primärer und sekundärer heteroatomsubstituierter Amine durch Enzym-katalysierte Acylierung Resolution of primary and secondary heteroatom-substituted amines by enzyme-catalyzed acylation
08/13/1996US5545558 Selection of chiral α-hydroxyketones and derivatives using lipase
08/08/1996WO1996023894A1 Racemate separation of primary and secondary heteroatom-substituted amine by enzyme-catalysed acylation
08/07/1996EP0725146A1 Process for producing optically active triazole compound and method of racemizing optically active triazole compound
08/07/1996EP0725142A1 Process for producing d-amino acid by using composite immobilized enzyme preparation
07/1996
07/31/1996EP0723586A1 Enzyme and its use in preparing (s)-pipecolic acid
07/30/1996US5541080 Method for preparing L-alpha-amino acids
07/24/1996EP0504421B1 D-pantolactone hydrolase and production thereof
07/24/1996CN1127301A A method for the resolution of a racemic mixture of nucleoside enantioners
07/23/1996US5539116 Method and compositions for the synthesis of BCH-189 and related compounds
07/23/1996US5539111 Process for resolution of racemates of 4-aryl-2-oxo-pyrrolidine-3-carboxylic acid esters
07/23/1996US5538975 (-)-4-amino-5-fluoro-1-(2-hydroxymethyl-1,3-oxathiolan-5yl) -(1h)-pyrimidin-2-one and derivatives; antiviral agent
07/17/1996CN1126987A Process for producing triazole derivative
07/11/1996WO1996020910A1 Method for optical resolution of (r,s)-1,2-phenylethanediol using enzymes
07/10/1996EP0720655A1 Racemate cleavage of primary and secondary amines by enzyme-catalysed acylation
07/09/1996US5534436 Enzymatic resolution of asymmetric alcohols by means of vinyl esters of polybasic carboxylic acids
07/04/1996WO1996020285A1 Kinetic resolution process
07/03/1996EP0719865A1 Process for preparing D-lysine
06/1996
06/26/1996EP0718407A1 Intermediates for the synthesis of eliprodil enantiomers and process for their preparation
06/25/1996US5529929 Using aqueous solution of microbial esterase
06/25/1996US5529909 Nucleic acid sequence which codes for tyrosinase linked to its activator protein
06/24/1996CA2166013A1 Intermediates in the synthesis of the enantiomers of eliprodil and process for the preparation thereof
06/19/1996EP0716712A1 Lipase-catalysed acylation of alcohols with diketenes
06/19/1996CN1124982A Chiral synthesis of tertiary alcohols with a hydrolase
06/18/1996US5527916 Pyranones
06/06/1996WO1996017077A1 Enantioselective preparation of pharmaceutically active sulfoxides by bioreduction
06/06/1996WO1996017076A1 Enantioselective preparation of pharmaceutically active sulfoxides by biooxidation
06/06/1996WO1996017075A1 A process for producing sulphoxide enriched in the (r) or the (s) enantiomer
06/06/1996CA2204000A1 Enantioselective preparation of pharmaceutically active sulfoxides by bioreduction
06/06/1996CA2203999A1 Enantioselective preparation of pharmaceutically active sulfoxides by biooxidation
06/06/1996CA2203884A1 Sulphoxides
06/05/1996EP0714984A2 Process for producing optically active alcohol containing phenyl group
06/05/1996EP0714447A1 Process for preparing (l)-2-chlorpropionic acid and its salts
06/05/1996DE19541080A1 Synthesis of sex pheromone of Lymantria dispar L., useful as insecticide
06/04/1996US5523233 Enzymatic hydrolysis of 3,3-diethyl-4-[(4-carboxy)phenoxy]-2-azetidinone esters
06/04/1996US5523223 Ketoester reductase for conversion of keto acid esters to optically active hydroxy acid esters
05/1996
05/21/1996US5518903 Process for producing optically active 3-aminobutanoic acid and the ester intermediates
05/15/1996EP0711836A1 Method of producing optically active alpha-hydroxy acid or alpha-hydroxyamide
05/15/1996CN1031804C Process for preparation of optically pure diastereoisomers of tetrahydrofolate compounds
05/14/1996US5516690 Ketoprofen resolution by ester hydrolysis using Trichosporon laibacchii
05/14/1996US5516660 Microorganisms, their use and method of producing L-α-amino acids
05/08/1996EP0710725A1 Production of optically active compounds
05/08/1996CN1122134A Process for preparing intermediates for the synthesis of antifungal agents
05/07/1996USRE35230 Enantiomeric enrichment of cyanohydrins
05/07/1996US5514589 Chiral resolution of an intermediate in diltiazem synthesis using lipase PS immobilized with sucrose
05/02/1996WO1996012818A1 Biological resolution of racemic indene oxide to (1s,2r)-indene oxide
05/02/1996CA2203016A1 Biological resolution of racemic indene oxide to (1s,2r)-indene oxide
05/02/1996CA2161849A1 Production of optically active compounds
05/01/1996EP0709465A2 Optical resolution for producing optically active alcohol
05/01/1996EP0709464A2 Process for the enzymatic separation of enantiomers of racemic 2-oxotricyclo-2,2,1,03,5-heptan-7-carboxylic acids and esters thereof
04/1996
04/30/1996US5512543 Use of optically active isomers of (E)-3,3-dimethyl-5-(2,2,3-trimethyl-3-cyclopenten-1-YL)-4-penten-2-OL as perfuming ingredients
04/30/1996US5512465 Process for producing optically active 1,3-butanediol
04/25/1996WO1996012035A1 Enzymatic process for the preparation of chiral-alpha-tertiary carboxylic acid esters
04/25/1996WO1996012028A1 Production of peptides in plants as viral coat protein fusions
04/18/1996WO1996011282A1 Bacterial process for the resolution of racemic cis-diols
04/18/1996CA2199159A1 Bacterial process for the resolution of racemic cis-diols
04/17/1996EP0648277B1 Microbial esterase for the enantioselective cleavage of 1-arylalkylesters
04/16/1996US5508466 Synthesis of N-protected-α-substituted-glycine racemic esters by zinc-mediated addition of organic halide to glycine cation equivalent
04/05/1996CA2159777A1 Process for the enzymatic separation of enantiomers of rac-2-oxotricyclo[2.2.1.03.5]heptane-7-carboxylic acid and of rac-2-oxotricyclo[2.2.1.03.5]heptane-7-carboxylic esters
04/03/1996EP0704537A2 Process for the resolution of a stereo-isomeric alcohol mixture
04/03/1996EP0704419A1 Process for producing triazole derivative
03/1996
03/20/1996CA2132411A1 Enzymatic esterification of long-chain racemic acids and alcohols
1 ... 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 ... 48