Patents for C12P 41 - Processes using enzymes or micro-organisms to separate optical isomers from a racemic mixture (4,784) |
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11/14/1990 | CN1046935A Stabilization of carboxyl esterase |
11/07/1990 | EP0396447A1 Process for the selective separation of the enantiomers of halogenpropionic acid esters |
11/02/1990 | CA2015792A1 Process for the enantiomerically selective separation of halogeno-2-propionic acid esters |
10/31/1990 | EP0395181A1 Stabilization of carboxyl esterase |
10/28/1990 | WO1990013635A1 Stabilization of carboxyl esterase |
10/16/1990 | US4963492 Using lipases from pig liver or pancreas or microorganisms |
10/10/1990 | EP0391345A2 Method for preparing optically active substances |
10/09/1990 | US4962031 Specific compounds having hydroxyl groups reacted with esters in presence of hydrolases |
10/01/1990 | CA2012364A1 Optically active compound and process for preparing the same |
09/26/1990 | EP0388778A2 Preparation of dioxolane derivatives |
09/12/1990 | EP0387068A1 Improving the enantioselectivity of biocatalytic resolution of racemic compounds |
09/12/1990 | EP0386848A1 Novel Exophiala species |
09/11/1990 | US4956285 Isomerization of mixture with microorganisms or enzymes |
09/11/1990 | CA1273885A1 D-2-haloalkanoic acid halidohydrolase |
08/29/1990 | EP0384189A2 Optically active compound and a process for the production thereof |
08/22/1990 | EP0383403A1 Process for preparation of organic chemicals |
08/22/1990 | EP0179864B1 Process for preparing l-carnitine |
08/21/1990 | US4950606 Enantiomeric enrichment and stereoselective synthesis of chiral amines |
08/16/1990 | EP0382114A2 N-acyl-2-amino acid amides containing phosphinic-acid esters, process for their preparation and N-acyl-2-amino acid nitriles as starting products |
08/16/1990 | EP0382113A1 Process for the enzymatic separation of 2-amino-4-methyl-phosphino-butyric-acid derivatives |
07/24/1990 | US4943528 Process for the production of optically active (R)-(-)-3-halo-1,2-propanediol |
06/27/1990 | EP0375394A2 Process for preparing leukotriene antagonists |
06/27/1990 | EP0374651A1 Process for the preparation of L-phosphinothricine |
06/22/1990 | CA2006197A1 Process for preparing leukotriene antagonists |
06/19/1990 | US4935359 Fermentation process |
06/13/1990 | EP0372891A2 Optically active compounds and a process for producing these compounds |
06/12/1990 | US4933290 Reacting with an ester, acid, or anhydride in the presence of a lipase immobilized on a porous carrier |
06/12/1990 | US4933282 Treating gamma-haloacetonacetic acid ester with microorganism under anaerobic conditions |
06/05/1990 | US4931399 Process for preparing optically-active glycerol ketal derivatives |
06/05/1990 | CA1269941A1 Process for preparing l-carnitine |
05/29/1990 | US4929760 Enantiomorphs, liquid crystals, fungicides, herbicides |
05/23/1990 | EP0369553A1 Process for the enantioselective preparation of D-(-)-3-hal-2-methylpropionic acid or derivatives thereof and the preparation of captopril therefrom |
05/08/1990 | US4923811 Carrying out enzymatic oxidations |
05/08/1990 | US4923810 Fractionation of enzyme into adsorbed and nonadsorbed portions |
05/03/1990 | WO1990004643A1 Process for preparing optically active glycidate esters |
05/02/1990 | EP0366303A2 Biocatalysts |
05/02/1990 | CN1041785A Method for preparing optically active 3-phenylglycidic acid esters |
05/01/1990 | US4922001 Chiral synthesis units from prochiral glycerol |
05/01/1990 | US4921798 Synthesis of (aryl or arylalkyl)-3-hydroxy propionic acids and aryl alkanediols having high optical purity |
04/25/1990 | EP0365029A2 Method of systhesizing optically active beta-halolactic acid or glycidic acid |
04/17/1990 | US4918196 Heating in presence of strong base, solvent or solvent-free |
04/11/1990 | EP0362556A1 Method for preparing optically active 3-phenylglycidic acid esters |
04/10/1990 | US4916074 Process for producing optically active compounds |
04/03/1990 | US4914028 Method of preparing beta-2',2'-difluoronucleosides |
03/27/1990 | US4912044 Complexing Dna with cloning vector; insertion into microorganism |
03/27/1990 | US4912042 Preparation of D-malic acid or derivative |
03/20/1990 | US4909916 Electrodialysis |
03/14/1990 | EP0358428A2 Process for producing optically active compounds |
03/12/1990 | EP0264429A4 ENZYMATIC PROCESS FOR PREPARING OPTICALLY-ACTIVE 1,2-DIHYDRO-3H-PYRROLO 1,2a]PYRROLE-1-CARBOXYLIC ACID DERIVATIVES. |
03/08/1990 | WO1990002192A1 Method of catalyzing stereochemical reactions |
03/07/1990 | EP0357009A2 Method of resolution of hydroxy-cyclopentenones using a lipase and transacylation agents |
03/07/1990 | EP0356912A2 A method for the preparation of an optically active 2-substituted carboxylic acid |
03/06/1990 | US4906568 Process for isolation of carnitinehydrolyase and an effector from enterobacteriaceae and use thereof to prepare carnitine |
02/28/1990 | EP0355102A1 Electroenzymatic method for producing compounds having a controlled enantiomeric purity. |
02/27/1990 | US4904593 Novel microorganism, a novel esterase and method for preparing the same |
02/27/1990 | US4904589 Cultivating pseudomonas or tricosporon to assimilate only l-(+)-tartaric acid from a racemic mixture |
02/27/1990 | CA1266248A1 Method and apparatus for resolution of stereoisomers in multiphase and extractive membrane reactors |
02/06/1990 | US4898822 Process for preparing optically active indoline-2-carboxylic acid |
01/31/1990 | EP0352846A1 Process for the preparation of biocatalysts with previously absent stereoselective enzyme activity |
01/30/1990 | CA1265083A1 Process for the preparation of aromatically substituted l-amino acids |
01/25/1990 | WO1990000611A1 Synthesis of stereospecific enzyme by non-chromosomal transformation of a host |
01/17/1990 | EP0350811A2 Enzymatic resolution process |
01/16/1990 | US4894336 Cultures, microorganisms, hydrolytic enzymes |
01/03/1990 | EP0348901A2 Process for producing optically active alfa-substituted organic acid and microorganism and enzyme used therefor |
12/19/1989 | US4888281 Method of catalyzing chemical reactions |
12/13/1989 | EP0345658A2 Processes for preparing a biocatalyst and its use in the separation of racemic mixtures |
12/12/1989 | US4886750 Process for the preparation of a pharmaceutically active compound in a stereospecific form of the formula |
12/06/1989 | EP0344791A2 Process for the enzymatic resolution of the optical isomers of racemic ester derivatives of 3-mercapto-2-alkyl-propionic acid |
12/05/1989 | US4885246 (1s,5r)-7,7-alkylenedioxy-2-alkoxycarbonylbicyclo (3.3.0)octan-3-one by treating a racemic mixture with a microorganism |
11/29/1989 | EP0344044A1 Process for the preparation of optically active 2-aryloxy- or 2-arylthioalcanoic acids |
11/29/1989 | EP0343714A1 Phenylglycidate stereoisomers, conversion products thereof with e.g. 2-nitrothiophenol and preparation of diltiazem |
11/21/1989 | US4882451 Optically active compounds and process for producing thereof |
11/21/1989 | US4882084 Optically active substituted biphenyl compounds |
11/15/1989 | EP0341542A2 Method for the production of enantiomers |
11/14/1989 | US4880737 Hydrolysis with enzymes, resolution |
11/02/1989 | WO1989010410A1 Process for preparing optically active 1,3-butanediol |
11/02/1989 | EP0339751A1 Process for the enzymatic preparation of beta-lactams |
10/25/1989 | EP0338645A2 Process for producing an optically active 2-arylpropionic acid |
10/19/1989 | WO1989009765A1 Enzymatic resolution systems and compounds useful in the systems and their reparations |
10/04/1989 | EP0334966A1 Process for synthesizing optically active compounds |
09/27/1989 | EP0334358A2 Novel D-amidase and process for producing D-alpha-alanine and/or L-alpha-alanineamide |
09/27/1989 | CN1035847A Process for preparation of optically active 2-aryl propionic acid |
09/27/1989 | CN1035846A Process for preparation of optically active acids of 2-aryl alkane |
09/20/1989 | EP0333142A2 Process for the preparation of (R)-glycidyl esters |
09/13/1989 | EP0332379A2 Production process of L-alpha-amino acids |
09/12/1989 | US4865771 Process for preparing L(-)-carnitine chloride from 3,4-epoxybutyric esters and novel intermediate compounds |
09/06/1989 | EP0330695A1 Process for preparation of organic chemicals |
09/06/1989 | EP0232486B1 Process for reprocessing the solution which is left after the removal of the enzymes upon the enzymatic racematic splitting of an n-acetyl-dl-amino acid in the presence of an l-amino acid acylase |
09/06/1989 | CN1035320A Acylamino acid racemase and its use |
09/05/1989 | US4863859 Biochemical resolution using an esterase |
08/30/1989 | EP0330529A1 Process for the preparation of optically active 2-aryl-propionic acids |
08/30/1989 | EP0330217A2 Process for the continuous biotechnological preparation of optical isomer S(+) of 2-(6-methoxy-2-naphthyl)propionic acid |
08/29/1989 | US4861724 Process for preparing optically active 2,2'-dihydroxy-1,1'-binaphthyl |
08/22/1989 | US4859602 Enzymatic resolution using penicillin amidase |
08/16/1989 | EP0328345A2 Method of preparing beta-2',2'-difluoronucleosides |
08/16/1989 | EP0328125A2 Process for the enzymatic separation of the optical isomers of racemic alpha-alkyl-substituted primary alcohols |
08/15/1989 | US4857469 Process for preparing optically active mercapto compound |
08/15/1989 | US4857468 Biosynthesis |
08/15/1989 | US4857462 Process for obtaining D(+)-naproxen |
08/09/1989 | EP0327156A1 Process for the preparation of sulphur-containing L-alpha-amino acids |