| Patents for C12P 41 - Processes using enzymes or micro-organisms to separate optical isomers from a racemic mixture (4,784) |
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| 08/08/1991 | WO1991011186A1 Method and compositions for the synthesis of bch-189 and related compounds |
| 08/08/1991 | CA2678778A1 Method and compositions for the synthesis of bch-189 and related compounds |
| 08/07/1991 | EP0440251A2 Process for preparing optically active cyclopentenones |
| 08/07/1991 | EP0439779A2 Process for producing optically active hydroxy lactones |
| 08/06/1991 | US5037759 Oxidation of substituted phenoxy propane by bacteria |
| 08/06/1991 | US5037751 Ability for stereoselective hydrolysis of naproxen ester; gene encoded enzyme |
| 08/06/1991 | US5037750 Method for producing antibodies which catalyze chemical reactions |
| 08/06/1991 | US5037747 Resolution of 2rs-hydroxy substituted ester with selective pseudomonas lipase |
| 07/31/1991 | EP0438567A1 Preparation of d-malic acid or derivative |
| 07/31/1991 | EP0316374B1 Optically active compounds |
| 07/24/1991 | EP0437555A1 Process for the racemic separation of 4-aryl-2-oxo-pyrrolidine-3-carboxylic acid esters. |
| 07/23/1991 | US5034329 Process for the preparation of optically active 2-arylalkanoic acids |
| 07/17/1991 | EP0436730A1 Method of producing d-pantolactone |
| 07/16/1991 | US5032523 Preparation of optically active esters |
| 07/03/1991 | EP0435551A2 Process for preparation S-(+)-3 halogeno-1,2-propanediol by treatment with microorganism |
| 07/03/1991 | EP0435293A2 Methods of producing optically active hydroxyesters |
| 07/03/1991 | EP0435153A2 R-(-)-1-(5-hydroxyhexyl)-3-methyl-7-propylxanthin, process for its preparation and medicines containing it |
| 07/03/1991 | EP0435152A2 Process for the enantioselective preparation of (omega-1)-hydroxyalkylxanthines |
| 06/26/1991 | EP0434393A2 Process for preparation of R-(-)-3-halogeno-1,2-propanediol by treatment with microorganism |
| 06/26/1991 | CN1052509A Process for preparation of optically pure diastereoisomers of tetrahydrofolate compounds |
| 06/26/1991 | CN1052508A Polypeptides, dna sequences allowing their expression, method of preparation, utilization |
| 06/25/1991 | US5026642 Stereospecificity; renin inhibitors; reducing to secondary alcohol with microorganisms containing dehydrogenase |
| 06/19/1991 | EP0433117A1 Novel polypeptides, the DNA sequences allowing their expression, method of preparation, and utilization |
| 06/19/1991 | EP0432441A1 Process for the preparation of optically pure diastereoisomers of tetrahydrofolate compounds |
| 06/12/1991 | EP0431970A2 Process for producing optically active R-(+)-2, 3,-dichloro-1-propanol using microorganism |
| 06/12/1991 | EP0431060A1 Method of catalyzing stereochemical reactions |
| 06/05/1991 | EP0430555A1 Process for preparing (+)- homopilopic acid |
| 06/05/1991 | CN1051905A Enzymatic resolution of endo bicyclo (2,2,1) heptan-2-01 and derived pharmaceutical agents |
| 06/04/1991 | US5021345 Immobilzation of lipase for resolving racemates of esters of racemic alcohols |
| 05/30/1991 | WO1991007501A1 Enzymatic resolution of endo-bicyclo[2.2.1]heptan-2-ol and derived pharmaceutical agents |
| 05/28/1991 | US5019503 Method for production of l-threonine |
| 05/28/1991 | US5019298 Optically active aromatic carboxylic acid derivatives and process for producing the same |
| 05/22/1991 | EP0428392A2 Optically active compounds having plural chiral centers and the production thereof |
| 05/22/1991 | EP0428302A2 Enzymatic resolution of endo-bicycle(2.2.1)-heptan-2-ol and derived pharmaceutical agents |
| 05/21/1991 | US5017484 Selective metabolism with microorganism |
| 05/08/1991 | EP0426656A2 Process for the preparation of 2-arylpropionic acids |
| 05/07/1991 | CA1283878C PROCESS FOR PRODUCING D-.alpha.-AMINO ACIDS |
| 05/02/1991 | WO1991005870A1 Enzymatic production of d-amino acids |
| 04/25/1991 | DE3930104C1 Biochemical prodn. of D-(-)-mandelic acid - comprises enzymic redn. of alkali metal benzoyl-formate in presence of Enterococcus faecalis, used as intermediate for drugs |
| 04/24/1991 | EP0424064A1 Chiral azabicyloheptanone and a process for their preparation |
| 04/24/1991 | EP0423133A1 Enzymatic resolution systems and compounds useful in the systems and their reparations. |
| 04/23/1991 | US5010012 Process for the enzymatic preparation of optically active phosphorus containing functional acetic acid derivatives |
| 04/17/1991 | EP0422768A1 Optically active monoester compounds and producing same |
| 04/16/1991 | CA1283076C (S) .alpha.-CYANO-3-PHENOXY BENZYL ACETATE |
| 04/10/1991 | EP0421636A1 Enzymatic resolution process |
| 04/10/1991 | EP0421283A2 A new process for preparing optically active 3-substituted azetidinones |
| 04/03/1991 | EP0419988A1 Enzymatic enantioselective synthesis of S(-) and R(+) esters of 4-hydroxy-1-cyclopentenone and its 2',2'-dimethyl-1',3'-propandiol ketal |
| 04/03/1991 | CN1050386A Indolo-benzoquinoline derivatives, process for preparing same and their pharmaceutical use for anti-allorhythmia |
| 03/27/1991 | CA2023856A1 Enzymatic resolution process |
| 03/26/1991 | WO1991004337A1 ENANTIOSELECTIVE, ENZYMATIC SYNTHESIS OF S(-) and R(+) ESTERS OF 4-HYDROXY-CYCLOPENTENE-1-ONE AND ITS 2',2'-DIMETHYLPROPANE-1',3'-DIOL-KETAL |
| 03/26/1991 | WO1991004334A1 Synthesis of aryl alkanediols having high optical purity |
| 03/26/1991 | US5002871 Enzymatic membrane method for the synthesis and separation of peptides |
| 03/26/1991 | US5002693 Novel optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements |
| 03/26/1991 | CA2066689A1 Enantioselective, enzymatic synthesis of s(-) and r(+)esters of 4-hydroxy-cyclopentene-1-one and its 2'-2'-dimethylpropane-1,3'-diol-ketal |
| 03/20/1991 | EP0417785A1 Process for preparing optically active 3-phenylglycidic acid esters |
| 03/13/1991 | EP0416282A1 Microbiologically produced N-Acyl-L-proline-acylase, process for its production and its use |
| 03/07/1991 | WO1991000923A3 Process for producing antibacterial intermediates via enzyme hydrolysis of racemic substrates |
| 03/07/1991 | CA2024622A1 Microbiologically produced n-acyl-l-proline acylase, process of producing same and its use |
| 03/06/1991 | EP0415776A2 Indolobenzoquinoline derivatives, their preparation and their use as anti-arrhythmic drugs |
| 03/01/1991 | CA2024252A1 Indolobenzoquinoline derivatives, their preparation and their use as anti-arrythmic drugs |
| 02/27/1991 | EP0414453A1 Optically active cyclopentenols and process for preparing the same |
| 02/27/1991 | EP0414247A2 Cloning, expression and sequencing of an ester hydrolase genein escherichia coli |
| 02/26/1991 | US4996158 Optical resolution of racemic alcohols |
| 02/25/1991 | CA2023892A1 Cloning, expression and sequencing of an ester hydrolase gene in escherichia coli |
| 02/18/1991 | WO1991002808A1 Preparation of d-malic acid or derivative |
| 02/18/1991 | CA2035877A1 Preparation of d-malic acid or derivative |
| 02/13/1991 | EP0412585A1 Enantioselective preparation of S-2R1,2R2-1,3-dioxolane 4-methanol and derivatives thereof |
| 02/04/1991 | WO1991002081A1 Method of producing d-pantolactone |
| 01/24/1991 | WO1991000923A2 Process for producing antibacterial intermediates via enzyme hydrolysis of racemic substrates |
| 01/16/1991 | EP0407909A1 Process for the preparation of R-(+)-3-oxo cycloalkane carboxylic lower alkyl esters |
| 01/15/1991 | US4985590 Optically active benzene derivatives and process for preparation thereof |
| 01/15/1991 | US4985366 Utilizing a Lipase |
| 01/15/1991 | US4985365 Process for producing optically active benzyl alcohol compound |
| 01/15/1991 | US4985364 Preparation of cyclopropanecarboxylic acids |
| 01/12/1991 | WO1991000922A1 Process for producing lower alkyl esters of r-(+)-3-oxocycloalkane carboxylic acids |
| 01/12/1991 | CA2064248A1 Process for producing lower alkyl esters of r-(+)-3-oxocycloalkane carboxylic acids |
| 01/10/1991 | WO1991000362A1 Process for the racemic separation of 4-aryl-2-oxo-pyrrolidine-3-carboxylic acid esters |
| 01/10/1991 | DE3921593A1 Verfahren zur racemattrennung von 4-aryl-2-oxo-pyrrolidin-3-carbonsaeure-ester A process for the resolution of racemic 4-aryl-2-oxo-pyrrolidin-3-carbonsaeure ester |
| 01/09/1991 | EP0407190A2 Process for producing antibacterial intermediates via enzyme hydrolysis of racemic substrates |
| 01/09/1991 | EP0407033A2 Lipase and isozymes, notably of Candida rugosa, and their use |
| 01/03/1991 | DE3920570A1 Recovery of L-2-amino-4-methyl-phosphino-butyric acid - from prod. of enzymatic trans;amination of 4-(hydroxy)(methyl) phosphinyl-2-oxo:butyric acid by stepwise acid and pptn. |
| 01/02/1991 | EP0405691A1 A process for the preparation of a S-2,2-R1,R2-1,3-dioxolane-4-methanol |
| 01/02/1991 | EP0405104A1 Process for preparing antibacterial compounds and intermediates thereto |
| 01/01/1991 | US4981799 Acylamino acid racemase, production and use thereof |
| 01/01/1991 | US4981796 Biosynthesis |
| 12/30/1990 | CA2020197A1 Process for the preparation of a s-2,2-r ,r -1,3-dioxolane-4-methanol |
| 12/29/1990 | CA2026862A1 Process for the resolution of a 4-aryl-2-oxopyrrolidine-3- carboxylic acid ester racemic |
| 12/27/1990 | EP0404146A2 Enantiomeric enrichment and stereoselective synthesis of chiral amines |
| 12/25/1990 | US4980291 Process for the enzymatic separation of the optical isomers of racemic α-alkyl-substituted primary alcohols |
| 12/25/1990 | US4980284 Biotransformation of 5-substituted hydantoins in aqueous medium containing Agrobacterium cells using a closed reactor at elevated pressures |
| 12/19/1990 | EP0402771A1 Process for the enzymatic clearance of 2-arylpropionic acid vinyl esters |
| 12/06/1990 | WO1990015146A1 Enzymes and their use |
| 12/06/1990 | CA2057007A1 Enzymes and their use |
| 12/05/1990 | EP0400638A1 Process for the preparation of D-alpha aminocarboxylic acids |
| 12/04/1990 | CA1277268C Immobilized acylase, process for its preparation and its use |
| 12/02/1990 | CA2017939A1 Production of d-.alpha.-aminocarboxylic acids by the biotransformation of hydantoins |
| 11/29/1990 | WO1990014434A1 Process for preparing antibacterial compounds and intermediates thereto |
| 11/28/1990 | EP0399589A1 Preparation of N-acyl alkylamines |
| 11/20/1990 | US4971909 Transesterification in the presence of hydrolases |
| 11/18/1990 | CA2016913A1 Preparation of n-acyl alkylamines |