Patents for C12P 41 - Processes using enzymes or micro-organisms to separate optical isomers from a racemic mixture (4,784) |
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10/18/2007 | CA2648557A1 A group of novel enantioselective microbial nitrile hydratases with broad substrate specificity |
10/17/2007 | EP1844777A1 Chronic, bolus administration of d-treo methylphenidate |
10/17/2007 | CN101056984A Method for the production of optically-active alcohols |
10/16/2007 | US7282605 N-allylcarboxamide derivative undergoes rearrangement reaction diastereoselectively in the presence of a base to give a 2-allylcarboxamide derivative, derivative is subjected to a carbamation reaction and solvolysis to give an optically active 2-allylcarboxylic acid ester, and ester is hydrolyzed |
10/11/2007 | WO2007114199A1 Process for producing optically active (s)-7-hydroxy-6-methylheptane-2-one and precursor thereof |
10/11/2007 | US20070238887 Chemo-enzymatic process for the preparation of escitalopram |
10/10/2007 | EP1842907A1 A group of novel enantioselective microbial nitrile hydratases with broad substrate specificity |
10/04/2007 | WO2007112299A2 Enzymatic preparation of (s) amino acid from (r,s) amino acid or from keto acid |
10/04/2007 | WO2004101513A3 Preparation of (e)- and (z)-2-methyl-2-butenoic acids |
10/03/2007 | EP1840218A1 Process for production of optically active (s)- or (r)- beta-amino acids and optically active (r)- or (s)-beta -amino acid esters, 2-alkoxyethyl esters of -amino acids, and optically acitve (s)- or (r)-2-alkoxyethyl esters of -amino acids |
10/02/2007 | US7276360 Thermostable omega-transaminases |
09/26/2007 | EP1835927A1 Modified beta thymosin peptides |
09/26/2007 | CN100339389C 丙型肝炎三肽抑制剂 Tripeptide inhibitor of hepatitis C |
09/20/2007 | US20070219389 Process for Production of Cyclopentenenitrile Derivatives |
09/19/2007 | CN101040053A Process for production of optically active (S)- or (R)- beta-amino acids and optically active (R)- or (S)-beta -amino acid esters, 2-alkoxyethyl esters of -amino acids, and optically acitve (S)- or (R |
09/19/2007 | CN100338006C Purification of alpha-, bera- or gamma-substituted carboxylic acids |
09/13/2007 | US20070213559 desalting step of removing a salt contained in the aqueous solution and/or formed in the neutralization step, and a step of separately collecting the optically active amino acid amide/amino acid separately from the desalted aqueous solution by a process which takes advantage of a difference in solubility |
09/12/2007 | EP1831150A1 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 |
09/12/2007 | CN101035894A Hydrolysis of ester bonds with lipase |
09/12/2007 | CN101035753A Processes for producing (4E)-5-chloro-2-isopropyl-4-pentenoate and optically active form thereof |
09/11/2007 | US7267969 Thermostable omega-transaminases |
09/07/2007 | WO2007099107A1 Process for the preparation of optically active 5-substituted 2-oxazolidinones from racemic epoxides and cyanate employing a halohydrin dehalogenase |
09/05/2007 | EP1829974A1 Method for producing (S)-2-butanol and 2-butanone from racemic 2-butanol employing an alcohol dehydrogenase |
09/05/2007 | EP1828394A2 Chemical process |
09/05/2007 | CN101031531A Proess for producing an optically active 2-methyl-alkane-1-ols from the corresponding 2-methylalk-2-en-1-als, comprising a step of enantioselective acylation to enrich one enantiomer |
09/04/2007 | US7264960 Enzymatic resolution of propylene glycol alkyl (or aryl) ethers and ether acetates |
09/04/2007 | US7264952 Thermostable omega-transaminases |
08/30/2007 | WO2007097429A1 Novel acylamidase gene and use thereof |
08/29/2007 | EP1485471B1 Alcohol dehydrogenases with high solvent and temperature stability |
08/29/2007 | EP0954571B1 Biocatalysts with amine acylase activity |
08/29/2007 | CN101027404A Enantioselective biotransformation for preparation of protein tyrosine kinase inhibitor intermediates |
08/29/2007 | CN101027277A 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 alkylester |
08/29/2007 | CN100334222C Enzyme method for preparing laevo-rotation and dextro-rotation tryptophane 15N by resolving racemic tryptophase 15N |
08/29/2007 | CN100334198C Serration and its use in preparation of chiral precurser for dielzepin |
08/23/2007 | WO2007094178A1 Novel (s,s)-butanediol dehydrogenase, gene for the same, and use of the same |
08/23/2007 | US20070196905 Stereoselective bioconversion of aliphatic dinitriles into cyano carboxylic acids |
08/23/2007 | US20070196904 Method for the production of chiral secondary alcohols |
08/22/2007 | EP1819825A2 Thermostable omega-transaminases |
08/16/2007 | WO2007091110A1 Enzymatic resolution process for the preparation of cycli-c beta-amino acid and ester enatiomers |
08/16/2007 | WO2007090767A1 Biocatalytic racemisation of alpha-hydroxyketones |
08/16/2007 | WO2007071599A3 A process for the production of an optically enriched tertiary alcohol |
08/15/2007 | EP1817424A1 Enzyme reactions in miniemulsions |
08/15/2007 | CN101016526A Oxidization microbacterium and method of preparing optical pure chiral aryl secondary alcohol by the same |
08/08/2007 | EP1815002A1 Method for the production of optically-active alcohols |
08/02/2007 | WO2007073845A3 Polypeptide having esterase activity and recombinant esterase and use thereof |
08/01/2007 | EP1813679A1 Method for preparing optically active compound |
08/01/2007 | EP1812581A2 Process for the preparation of an optically acitive n-carbamate protected beta-lactam by optical resolution employing a candida antarctica lipase |
08/01/2007 | EP1032389B1 CHRONIC, BOLUS ADMINISTRATION OF D-threo METHYLPHENIDATE |
08/01/2007 | CN1329520C Process for producing (3R,5S)-(E)-7-[2-cyclopropyl-4-(4-fluorophenyl)-quinolin- 3-yl]-3, 5-dihydroxyhept-6-enic acid esters |
08/01/2007 | CN101008020A Optically active cyclopropanecarboxamide preparation method |
07/26/2007 | WO2007084545A1 Process for making amino acids |
07/26/2007 | WO2007083776A1 Method for production of optically active biphenylalanine compound or salt or ester thereof |
07/26/2007 | US20070172933 Thermally stable amidases |
07/25/2007 | EP1811037A1 Process for the preparation of optically active cyclopentenones |
07/25/2007 | EP1811021A1 Novel carbonyl reductase, gene therefor and use thereof |
07/25/2007 | CN101003822A Method for producing D amino acid by immobilizing acylation enzyme of penicillin |
07/24/2007 | US7247468 Method for producing optically active 1,2-diols by microorganism culturing |
07/24/2007 | US7247465 Screening process for hydantoin racemases |
07/24/2007 | US7247460 Thermostable omega-transaminases |
07/19/2007 | US20070166814 using the lipase from Candida antarctica to contact ester to form an acid intermediate; hydrolyzing |
07/19/2007 | US20070166811 Deracemisation of Amines |
07/18/2007 | EP1808492A1 Synthesis of intermediates for the preparation of pramipexol |
07/18/2007 | CN1327002C Enzyme preparing method for Beta-amino acid of enriched antipode |
07/12/2007 | WO2007077120A1 Method for producing (r) - and (s)-4-(1-ammoniumethyl)benzoic acid methylester-sulphate from racemic 4-(1-aminoethyl)benzoic acid methylester by lipase catalysed enantoselective acylation and subsequent precipitation with sulphuric acid |
07/12/2007 | DE102006001160A1 Verfahren zur Herstellung von (R) und (S)-4-(1-Aminoethyl)benzoesäure-methylester A process for the preparation of (R) and (S) -4- (1-aminoethyl) benzoic acid methyl ester |
07/11/2007 | EP1805316A2 Method for producing the enantiomer forms of cis-configured 3-hydroxycyclohexane carboxylic acid derivatives using hydrolases |
07/11/2007 | EP1805314A2 Method for enantioselectively opening 3-substituted oxetan-2-ones under the action of lipases of candida antarctica or burkholderia plantarrii |
07/11/2007 | EP1805302A1 Hydrolysis of ester bonds with lipase |
07/10/2007 | US7241602 Nucleic acid sequences encoding enantioselective amidases |
07/05/2007 | WO2007073875A1 Method for the enantioselective enzymatic reduction of hydroxyketo compounds |
07/05/2007 | WO2007073846A1 Method for preparing enantiomerically enriched 2-alkyl-5-halopent-4-enecarboxylic acids and -carboxylic esters |
07/05/2007 | WO2007073845A2 Polypeptide having esterase activity and recombinant esterase and use thereof |
07/05/2007 | DE102005062966A1 Verfahren zur Herstellung von (R)- und (S)-4-(Ammoniumethyl)benzoesäuremethylester-sulfat A process for the preparation of (R) - and (S) -4- (ammoniumethyl) benzoate sulfate |
07/05/2007 | CA2635380A1 Polypeptide having esterase activity and recombinant esterase and use thereof |
07/05/2007 | CA2633583A1 Method for the enantioselective enzymatic reduction of hydroxyketo compounds |
07/04/2007 | CN1993476A Process for the production of (s)-5-chloro-2-isopropylpent-4-enoic acid esters |
07/04/2007 | CN1993472A Method for enantioselectively opening 3-substituted oxetan-2-ones under the action of lipases of candida antarctica or burkholderia plantarrii |
06/28/2007 | WO2007072753A1 Process for production of optically active 3-(3-hydroxyphenyl)-2-alkoxypropanoic acid or ester thereof |
06/28/2007 | WO2007072159A1 Preparation of gamma-amino acids having affinity for the alpha-2-delta protein |
06/28/2007 | US20070148742 Racemization and deprotection of special N-protected amino acids in the acylase/racemase system for the total conversion of special N-protected racemic amino acids into optically pure amino acids |
06/28/2007 | CA2633358A1 Preparation of gamma-amino acids having affinity for the alpha-2-delta protein |
06/27/2007 | EP1801228A1 Process for production of enantiomer-enriched compounds |
06/27/2007 | EP1801094A1 Method for producing (4e)-5-chloro-2-isopropyl-4-pentenoate and optically active substance thereof |
06/27/2007 | CN1989253A Method for the preparation of enantiomer forms of cis-configured 3-hydroxycyclohexane carboxylic acid derivatives using hydrolases |
06/27/2007 | CN1323057C Process for the preparation of (1S,4R) or (1R,4S)-1-amino-4-(methylol)-2-cyclopentene and its derivatives or its salts |
06/26/2007 | US7235399 Stereoselectively resolving a racemic mixture of 3-chloro-2-methyl-1,2-propanediol enantiomorphs by allowing at least one kind of microorganism (especially Pseudomonas) to act on it; process is enhanced by conducting it under aerobic conditions |
06/21/2007 | WO2006063336A3 Thermostable omega-transaminases |
06/21/2007 | CA2604928A1 Methods for obtaining optically active epoxides and diols from 2,3-disubstituted and 2,3-trisubstituted epoxides |
06/20/2007 | EP1604030B1 Enzymatic process for stereo-selective preparation of chemical compounds in hydrofluorocarbon solvents |
06/20/2007 | EP1409688B1 Nucleic acid sequences encoding enantioselective amidases |
06/20/2007 | CN1322129C Novel carbonyl reductase, gene encoding it and process for producing optically active alcohols using the same |
06/14/2007 | WO2003012126A3 Epoxide hydrolases, nucleic acids encoding them and methods for making and using them |
06/14/2007 | US20070134775 Process for producing lactonase and utilization thereof |
06/13/2007 | EP1309674B1 Stereoselective esterase from aspergillus oryzae |
06/12/2007 | US7229981 Process for the preparation of aminoalcohol derivatives and their further conversion to (1R,4S)-4-(2-amino-6-chloro-5-formamido-4-pyrimidinyl)-amino)-2-cyclopentenyl-1-methanol |
06/12/2007 | US7229817 Recombinant porcine liver esterases, their use and a method for the production thereof |
06/07/2007 | US20070128705 Enzymatic process for stereo-selective preparation of chemical compounds in hydrofluorocarbon solvents |
06/07/2007 | US20070128689 Reca-negative and rhab-negative microorganism |
06/06/2007 | EP1791965A1 Enantioselective biotransformation for preparation of protein tyrosine kinase inhibitor intermediates |
05/31/2007 | US20070123545 (1R,4S) or (1S,4R)-1-Amino-4-(hydroxymethyl)-2-cyclopentene D- or L-hydrogen tartrate intermediates |