| Patents for C07B 53 - Asymmetric syntheses (6,231) |
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| 07/19/1990 | CA2007906A1 Process and intermediates for isopropyl 3s-amino-2r-hydroxy-alkanoates |
| 07/18/1990 | EP0378318A1 Process for synthesis of FK-506 and tricarbonyl intermediates |
| 07/11/1990 | CA2007490A1 Process for synthesis of fk-506 and tricarbonyl intermediates |
| 07/10/1990 | US4940813 Resolution of a carboxylic acid |
| 06/27/1990 | EP0375554A2 Process for producing optically active threo-dihydroxyphenylserine derivatives |
| 06/27/1990 | EP0375417A2 Process for preparing optically active carnitine ester |
| 06/27/1990 | EP0374554A1 Chiral beta-binaphthyl compounds, their preparation and their use |
| 06/26/1990 | US4937379 Carboxylic acid synthesis process |
| 06/12/1990 | US4933511 Organometallic catalysts |
| 06/12/1990 | US4933482 Hydrogenation of beta-keto acid in presence of ruthenium phosphine complex |
| 06/06/1990 | CN1042704A Fluoxetine analog |
| 05/23/1990 | EP0369691A2 Process for preparing optically active 3-hydroxybutanoic acid |
| 05/23/1990 | EP0369685A2 Fluoxetine analog |
| 05/23/1990 | CN1008095B Preparation of chiral rhodium-diphosphine complex |
| 05/08/1990 | US4923999 Optically active borane complex and a method for producing an optically active alcohol derivative by the use thereof |
| 05/01/1990 | US4922009 Stereoconvergent process for preparing optically active carboxylic acids |
| 04/11/1990 | EP0362902A2 Process and intermediates for beta-lactam antibiotics |
| 04/10/1990 | US4916252 Process for preparing optically active alcohol |
| 04/03/1990 | US4914214 Condensing esterified 2-carboxyperhydroindole with specific isomer of n-(1-carbethoxybutyl)-alanine, deesterifying, forming salt |
| 03/21/1990 | CN1040578A Enantio-selective process for preparing derivatives of hemicaronic aldehyde of trans or cis-structure & intermediates obtained |
| 03/06/1990 | US4906780 Process for the production of optically active beta-methylcholine |
| 03/06/1990 | CA1266487A1 Chiral cyanohydrination process |
| 02/27/1990 | US4904790 Optically active styrene compounds substituted by a pyridinyl group |
| 02/20/1990 | US4902817 Process for the synthesis of alpha n alkylated amino acids and esters thereof, application to the synthesis of carboxyalkyl dipeptides |
| 02/06/1990 | CA1265536A1 Production of optically pure organoboranes |
| 01/31/1990 | EP0352977A2 Stereoselective oxidation process |
| 01/30/1990 | US4897481 Process for the minimization of racemization in the preparation of optically active ((aryloxy)phenoxy)propionate herbicides |
| 01/24/1990 | EP0352168A1 Process for the purification of D-hydroxyphenoxy propionic acid |
| 01/23/1990 | US4895979 Process for preparing carnitine |
| 01/17/1990 | EP0351382A2 Process for the synthesis of optically active aminoacids |
| 01/17/1990 | EP0351020A2 Substituted heterocyclic herbicides |
| 01/10/1990 | EP0349856A2 Optically active oxiranes |
| 01/02/1990 | US4891412 Optically active styrene derivatives, polymers obtained from these, complexes with iridium(I) and their use |
| 12/27/1989 | EP0348351A1 Process for the preparation of substituted anilides |
| 12/19/1989 | US4888433 Process for the preparation of optically active alpha-arylalkanoic acids and novel intermediates thereof |
| 12/14/1989 | WO1989012043A1 An improved process for the minimization of racemization in the preparation of optically active [(aryloxy)phenoxy]propionate herbicides |
| 12/06/1989 | EP0345243A2 Asymmetric hydrogenolysis of epoxides |
| 12/06/1989 | EP0344746A2 An improved process for the minimization of racemization in the preparation of optically active ((aryloxy) phenoxy) propionate herbicides |
| 11/23/1989 | EP0342904A2 2-Hydroxy-3-(4-methoxyphenyl)-3-(2-aminophenylthio)propionic acid, 8'-phenylmenthyl ester, especially for diltiazem |
| 11/23/1989 | EP0342850A1 Enantiomeric glutaramide diuretic agents |
| 11/15/1989 | EP0341462A1 Diastereoselective process for the preparation of intermediates useful for the synthesis of peptide derivatives |
| 11/02/1989 | EP0339764A1 Process for preparing carnitine |
| 11/02/1989 | EP0339618A2 Method for preparing optically active 3,4-dihydroxy butyric acid derivatives |
| 10/31/1989 | US4877908 Chiral phosphorus compounds, a process for their manufacture and their application to the catalysis of enantioselective synthesis reactions |
| 10/25/1989 | EP0339006A1 Process for preparing S-metoprolol and intermediates therefor |
| 10/11/1989 | EP0336538A1 Process for preparing chiral sulphoxides |
| 09/26/1989 | US4870208 Rhodium or ruthenium catalysts containing chiral phosphine ligands |
| 08/29/1989 | US4861903 Alkylaryl ketal |
| 08/09/1989 | EP0326869A2 Cycloaliphatic ketones, process for their preparation and their use as perfuming and aromatising ingredients |
| 08/08/1989 | US4855464 Optically active ketals, processes for their preparation and their use in the synthesis of alpha-arylalkanoic acids |
| 08/08/1989 | US4855432 Optically active iridium complexes and their use |
| 08/01/1989 | CA1258075A1 ASYMMETRIC SYNTHESIS OF .alpha.-SUBSTITUTED-.alpha.- CYANOMETHYL ALCOHOLS |
| 07/25/1989 | CA1257874A1 Process for preparing opticaly active 2-(4-hydroxy- phenoxy)propionic acid compounds |
| 07/18/1989 | US4849521 Stereoselective preparation of 3-substituted-4-piperidine compounds and derivatives |
| 07/13/1989 | WO1989006225A1 Ligand-accelerated catalytic asymmetric dihydroxylation |
| 07/05/1989 | EP0322973A2 Method of preparing optically active cyanohydrin derivatives and their conversion products, and optically active compounds to be obtained in this manner |
| 07/04/1989 | US4845243 Optically active dioxalane-one |
| 06/21/1989 | EP0320777A2 A novel approach to produce natural vitamin E making use of an asymmetric synthesis |
| 06/14/1989 | EP0320096A1 Process for asymmetrically reducing carbonyl compounds |
| 06/14/1989 | EP0319847A2 Method for the preparation of optically active 3-desmethylmevalonic acid derivatives and intermediate compounds |
| 06/07/1989 | CN1033273A Stereoselective preparation of 3-substituted-4-(phenyl anilo) piperidine compounds and derivatives |
| 05/18/1989 | WO1989004300A1 Stereoselective preparation of 3-substituted-4-(phenyl anilo) piperidine compounds and derivatives |
| 05/16/1989 | US4831185 Resolution of racemic mixture-dissolving in hydrocarbon solvent and crystallization |
| 05/10/1989 | EP0315494A1 Process for preparation of peptide synthons |
| 04/12/1989 | EP0311086A1 N-fluorinated sulfon amides, process for their preparation and their use |
| 03/22/1989 | EP0308341A1 Process for the industrial synthesis of perindopril and for its principal synthesis intermediates |
| 03/22/1989 | EP0308340A1 Process for the synthesis of N-alkylated alpha-amino acids and their esters, use in the synthesis of carboxyalkyl dipeptides |
| 03/22/1989 | EP0308188A2 Chiral epoxyalcohol recovery in asymmetric epoxidation process |
| 03/15/1989 | EP0307168A2 Ruthenium-phosphine complexes useful as catalysts |
| 03/01/1989 | EP0305289A1 Enantioselective process for preparing derivatives of trans- or cis-hemicaronaldehyde, and intermediates obtained |
| 03/01/1989 | EP0305089A1 Process for the asymmetric production of carboxylic acid esters and/or carboxylic acids |
| 03/01/1989 | EP0304954A2 Cyclic dipeptide enantiomers |
| 02/28/1989 | CA1250589A1 Optically active borane complex and a method for producing an optically active alcohol derivative by the use thereof |
| 02/21/1989 | CA1250290A1 PROCESS FOR RESOLUTION OF OPTICAL ISOMERS OF .beta.- ADRENERGIC AGENTS |
| 02/07/1989 | US4803285 Gamma-butyrolactams |
| 02/07/1989 | CA1249842A1 Method for preparing ( )s-2-hydroxy-2-methyl-hexanoic acid |
| 02/01/1989 | EP0302021A2 Process for the preparation of optically active secondary aryl amines |
| 02/01/1989 | EP0301457A2 Process for the preparation of optically active secondary amines |
| 01/24/1989 | US4800224 Optically active styrene derivatives, polymers obtained from these, complexes with iridium(I) and their use |
| 01/04/1989 | EP0297752A2 Process of preparing optically active alcohol |
| 12/21/1988 | EP0295890A2 Process of preparing optically active alcohol |
| 12/21/1988 | EP0295531A2 Hydrogenation process |
| 12/14/1988 | EP0295109A1 Process for preparing optically active alcohol |
| 11/23/1988 | EP0210210B1 Method for producing l-phenylalanine |
| 11/15/1988 | US4785089 Hypotensive agents |
| 11/08/1988 | CA1244451A1 Chiral phosphorus-containing ligands; process for preparing the same from naural amino acids and their use as catalysts in enantioselective synthesis reactions |
| 11/02/1988 | EP0288764A1 Optically active alpha-amino aldehydes, processes for their preparation and their use in the stereoselective preparation of optically active beta-amino alcohols |
| 10/26/1988 | CN88101200A Process for preparing optically active oxo-isoindolinyl derivatives |
| 10/05/1988 | EP0285175A1 Asymmetric photochemical reaction process |
| 09/28/1988 | EP0283615A1 Rhodium-containing hydrogenation catalysts |
| 09/20/1988 | US4772727 Nona-2,8-diene-1-ol, stereospecific epoxidation, multistage |
| 08/31/1988 | EP0280285A2 Process for making and isolating (R)-2-hydroxy 4-phenylbutyric acid and esters |
| 08/23/1988 | US4766220 Process for the preparation of optically active aryloxyalkanoic acid compounds |
| 08/16/1988 | US4764642 Process for preparing optically active alpha-haloalkyl-aryl-ketones |
| 08/16/1988 | US4764641 Transforming caronyl compound with tartaric acid, halogenating |
| 08/10/1988 | EP0277620A2 Process for the preparation of optically active beta-methyl choline |
| 07/06/1988 | EP0273316A2 Stereoconvergent process for preparing optically active carboxylic acids |
| 07/05/1988 | CA1238923A1 Optically-active di[3-chloro-2-oxy- propyltrimethylammonium]-tartrate |
| 06/29/1988 | EP0272644A2 Intermediates and their use in the synthesis of organic compounds |
| 06/22/1988 | EP0271868A2 Process for preparing optically active cyano compound |