| Patents for C12P 41 - Processes using enzymes or micro-organisms to separate optical isomers from a racemic mixture (4,784) |
|---|
| 07/07/1992 | US5128264 Process for preparing optically active 3-hydroxybutane derivatives using lipase |
| 07/07/1992 | US5128263 Producing captopril |
| 07/07/1992 | US5128252 Resolution of optically active esters, transesterification, lipase |
| 07/01/1992 | EP0493060A2 Production method of d-pantothenic acid and plasmids and microorganisms thereof |
| 06/25/1992 | WO1992010579A1 PROCESS FOR PRODUCING D-α-AMINO ACID |
| 06/24/1992 | EP0491548A2 Processes and intermediates for thromboxane receptor antagonists |
| 06/19/1992 | CA2055572A1 Processes and intermediates for thromboxane receptor antagonists |
| 06/17/1992 | EP0490407A2 Process for the enzymatic separation of the optical isomers of tosyloxy-alkanols |
| 06/16/1992 | US5122462 Reacting oxo compound with hydrocyanic acid in presence of oxynitrilase solubilized in lyotropic liquid crystal under acid conditions |
| 06/10/1992 | EP0489323A1 Optically pure dithiolanyl- and dithianoamino acids and their derivatives, process for their preparation and their use |
| 06/09/1992 | US5120652 Substantially purified n-acyl-l-proline acylase from comamonas testosteroni dsm 5416 and alcaligenes denitrificans dsm 5417 |
| 06/03/1992 | EP0488999A1 A method for producing optically active cyclopropane carboxylic acid |
| 06/03/1992 | EP0488916A1 Process for enzymatic preparation of ammonium adipate |
| 06/02/1992 | US5118619 Culturing corynebacterium or brevibacterium under aerobic condition in aqueous culture medium |
| 05/29/1992 | CA2056326A1 Enzymic process for the synthesis of ammonium adipate |
| 05/27/1992 | DE4037251A1 Prepn. of optically active alpha-hydroxy:carboxylic and alpha-acetoxy:carboxylic acid - by acylation of racemate of alpha-hydroxy:carboxylic acid with vinyl carboxylate, using lipase in organic solvent |
| 05/20/1992 | EP0486289A2 Biological process for producing alpha-hydroxyamide or alpha-hydroxy acid |
| 05/20/1992 | EP0440723A4 Process for preparing optically active glycidate esters |
| 05/19/1992 | CA1301100C Resolution of racemates of 3-acyloxy- bicyclo-[3.3.0]-octane-7-one-2-carboxylic acid esters by stereo-specific enzymatic or microbiological acylate hydrolysis |
| 05/06/1992 | EP0484063A2 Process for preparing optically active epoxy alcohols |
| 05/05/1992 | US5110943 Certain phenoxy (or 5-trifluoromethyl-pyridyl-oxy)-phenoxy-2-yl-propane derivatives |
| 04/30/1992 | WO1992007082A1 Process for producing optically active 1,3-butanediol |
| 04/28/1992 | US5108917 Process for the preparation of ibuprofen |
| 04/28/1992 | US5108916 Process for stereoselectively hydrolyzing, transesterifying or esterifying with immobilized isozyme of lipase from candida rugosa |
| 04/21/1992 | US5107039 Intermediates for asymmetric synthesis of steroids and alkaloids |
| 04/21/1992 | US5106750 Enantio- and regioselective synthesis of organic compounds using enol esters as irreversible transacylation reagents |
| 04/21/1992 | US5106736 Enzymatic process for enantiomer-specific perparation of mercapto alkanoic acid compounds |
| 04/16/1992 | WO1992006182A1 D-pantolactone hydrolase and production thereof |
| 04/15/1992 | EP0480676A2 Acyl carnitine esterase, production thereof and method for analyzing acyl carnitines |
| 04/15/1992 | EP0480567A1 Selective aqueous extraction of organics coupled with trapping by membrane separation |
| 04/15/1992 | EP0423133A4 Enzymatic resolution systems and compounds useful in the systems and their reparations |
| 04/14/1992 | CA1298800C Immobilized enzyme preparation and its use |
| 04/10/1992 | CA2046552A1 Selective aqueous extraction of organics coupled with trapping by membrane separation |
| 04/07/1992 | US5102799 Of esters |
| 04/07/1992 | US5102793 Treating with a culture product to form optically active 3alpha-hydroxy prostacyclin compound |
| 04/02/1992 | WO1992005275A1 A process for the preparation of enantiomeric 2-alkanoic acids |
| 03/18/1992 | EP0475255A2 Process for the preparation of optically pure (S)-alpha-[(tert-butylsulfonyl)methyl]hydro cinnamic acid |
| 03/18/1992 | EP0474861A1 Alcohol-ester separation by reaction with acetate. |
| 03/11/1992 | EP0474250A2 Enzymatic process for separating the optical isomers of racemic 1,2-diols |
| 03/11/1992 | EP0474129A2 1,4-Dihydropyridine derivatives and process for preparing the same |
| 03/04/1992 | EP0473328A2 Biological process for preparing optically active lactic acid |
| 03/03/1992 | US5093250 Process for producing optically active bicyclo[3.3.0]octanedione carboxylic acid esters |
| 02/26/1992 | EP0472336A1 Process for preparing optically active 3-hydroxybutane derivatives |
| 02/20/1992 | WO1992002631A1 Process for producing optically active 3-phenyl-1,3-propanediol |
| 02/19/1992 | EP0471531A1 Process for preparing optically active alpha-hydroxyalkene derivatives |
| 02/18/1992 | US5089637 2R-(trifluoromethylsulfonyloxymethyl) chroman or 2R-benzylchroman |
| 02/18/1992 | US5089405 Process for the preparation of optically active 2-arylpropionic acids and pharmaceutical compositions containing the same |
| 02/18/1992 | US5089176 2-acyloxymethyl-3-hydroxymethylbicyclo (2.2.2)oct-5-ene |
| 01/29/1992 | CN1058214A 1,3-oxathiolane nucleoside analogues |
| 01/28/1992 | US5084392 Process for producing optically active hydroxy lactones |
| 01/28/1992 | US5084387 Microbiological hydrolysis for the preparation of (exo,exo)-7-oxabicyclo(2.2.1) heptane-2,3, monoacyl ester dimethanol |
| 01/28/1992 | CA1294910C Process for the enzymatic separation of the optical isomers of racemic oxazolidinonic derivatives |
| 01/22/1992 | EP0467132A2 4-Substituted-2-hydroxybutanoates and a process for producing them |
| 01/14/1992 | US5081024 Resolution by microbial fermentation |
| 01/08/1992 | EP0464905A1 Enzymatic, enantioselective preparation of R-glycidol |
| 01/07/1992 | US5079167 Enzymatic resolution of amino acid carbamate racemates |
| 01/07/1992 | US5079152 Antibody combining sites that exhibit stereoselective synthase activity, and methods using the same |
| 01/06/1992 | CA2086236A1 Process for producing enantiomers of 2-aryl-alkanoic acids |
| 12/31/1991 | US5077217 Using enzymes in aqueous solutions |
| 12/24/1991 | US5075233 Process for the preparation of 2-aryloxypropionic acids |
| 12/12/1991 | WO1991019002A1 A process for chiral enrichment of asymmetric primary amines |
| 12/11/1991 | EP0461043A2 Enantiomer separation by transesterification |
| 12/11/1991 | EP0460949A2 Enantiomerically selective enzymic acylation of a racemic 3-amino azetidinone |
| 12/04/1991 | EP0459455A2 Process for producing optically active alpha-hydroxyesters |
| 12/03/1991 | US5070022 Lipase from pseudomonas, candida or chromobacterium |
| 11/26/1991 | US5068187 Process for producing D-α-amino acids |
| 11/26/1991 | CA1292434C Process for racemizing an optically active n-benzylidene amino-acid amide |
| 11/14/1991 | WO1991017159A1 1,3-oxathiolane nucleoside analogues |
| 11/14/1991 | CA2337748A1 1,3-oxathiolane nucleoside analogues |
| 11/13/1991 | EP0456107A2 Process for the enzymatic reduction of oxo-compounds, especially acetophenone and the enzyme therefor |
| 10/30/1991 | EP0454463A2 Process for producing epoxyalcohols of high optical purity |
| 10/29/1991 | US5061629 Pseudomonas lipase |
| 10/27/1991 | CA2039857A1 Process for producing epoxyalcohols of high optical purity |
| 10/17/1991 | WO1991013066A3 METHOD FOR PREPARING CIS-β-PHENYLGLYCIDIC-(2R,3R) ACID |
| 10/16/1991 | EP0451668A2 Optically active alkyl 3-aryl-3-hydroxypropionates and a method for producing thereof |
| 10/15/1991 | US5057607 3-amino-2(ethyl-2-furanyl)-4-oxo azetidine acetic acids or esters are reacted with substituted acids or esters in presence of penicillin G amidase |
| 10/15/1991 | US5057427 Method for resolution of stereoisomers |
| 10/02/1991 | EP0449648A2 Process for producing R(-)-mandelic acid and derivatives thereof |
| 10/02/1991 | DE4009891A1 Prepn. of optically active alcohol(s) and carbonic acid di:ester(s) - by hydrolysis of racemic carbonic acid di:ester(s) with lipase |
| 10/01/1991 | WO1991015470A1 Alcohol-ester separation by reaction with acetate |
| 10/01/1991 | US5053507 Optically active pyrimidines derivatives |
| 09/25/1991 | EP0448254A2 Process and intermediates for 2R-benzyl-chroman-6-carbaldehyde |
| 09/25/1991 | EP0447938A1 Process for preparing 2-halogeno-3-hydroxy-3-phenyl-propionic acid ester compounds |
| 09/25/1991 | EP0431060A4 Method of catalyzing stereochemical reactions |
| 09/24/1991 | US5051525 Selective hydrolysis of nitriles to form amides |
| 09/18/1991 | EP0446826A2 Process for the production of optical active cyanhydrin |
| 09/18/1991 | EP0446771A2 Esterase from Serratia and process for preparing the same |
| 09/18/1991 | EP0148272B1 Process for producing optically active benzyl alcohol compounds |
| 09/17/1991 | US5049497 Novel process for the synthesis of the enantiomers of bicyclo(4.2.0)oct-2-en-7-one and derivatives |
| 09/10/1991 | US5047585 Process for racemizing an optically active N-benzylidene amino-acid amide |
| 09/10/1991 | US5047346 Optically active 3-(2-trifluoro-1-hydroxyethyl)propenyl benzyl ether, derivatives thereof, method for preparing the same and use thereof for liquid crystal compound |
| 09/05/1991 | WO1991013066A2 METHOD FOR PREPARING CIS-β-PHENYLGLYCIDIC-(2R,3R) ACID |
| 08/28/1991 | EP0443406A2 Process for enzymatic racemate separation of pantolacton |
| 08/27/1991 | WO1991013163A1 Stereospecific resolution by hydrolysis of esters of 2-arylpropionic acids by liver enzymes |
| 08/27/1991 | US5043274 Microorganism containing stereospecific inverting enzyme |
| 08/27/1991 | CA2076972A1 Stereospecific resolution by hydrolysis of esters of 2-arylpropionic acids by liver enzymes |
| 08/22/1991 | WO1991012221A1 Process for separating enantiomeric substances, and a separating medium for carrying out the process |
| 08/20/1991 | US5041375 Method of producing carnitine |
| 08/20/1991 | US5041227 Continous recycling of extractant |
| 08/14/1991 | EP0440723A1 Process for preparing optically active glycidate esters. |