| Patents for C07B 53 - Asymmetric syntheses (6,231) |
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| 04/23/1997 | EP0769006A1 Small molecule inhibitors of rotamase enzyme activity |
| 04/17/1997 | WO1997013763A1 Asymmetric synthesis catalyzed by transition metal complexes with new chiral ligands |
| 04/16/1997 | CN1147813A Novel selective inhibitors of viral or bacterial neuraminidases |
| 04/16/1997 | CN1147808A A process for the preparation of 5,6-dihydroxy-2-amino-1,2,3,4-tetrahydronaphthalene derivatives |
| 04/09/1997 | EP0766662A1 Asymmetric synthesis of (r)- and (s)-arylethanolamines from iminoketones |
| 04/09/1997 | EP0746410A4 Water-soluble chiral sulfonated binap catalyst for asymmetric synthesis of optically active compounds |
| 04/01/1997 | US5616802 Cyclobutenedione derivative, process for preparing the same, and nonlinear optical element |
| 04/01/1997 | US5616750 Compounds and process |
| 04/01/1997 | US5616737 Stereoselective preparation of (-) 3a,6,6,9a-tetramethyl-perhydronaphtho[2,1-b]furan |
| 03/26/1997 | EP0764652A1 Novel intermediates for the synthesis of bisphosphine compounds |
| 03/26/1997 | CN1146205A Preparation of arthropodicidal oxadiazines |
| 03/25/1997 | US5614641 Using a phosphino-containing ruthenium complex as catalyst |
| 03/25/1997 | US5614628 Antitumor |
| 03/25/1997 | US5614547 Small molecule inhibitors of rotamase enzyme |
| 03/23/1997 | CA2185971A1 Intermediates for the synthesis of bisphosphine compounds |
| 03/20/1997 | WO1997010201A1 Separation of optically active amides |
| 03/20/1997 | DE19534208A1 Spaltung von optisch aktiven Amiden Cleaving optically active amides |
| 03/19/1997 | EP0763533A1 Preparation and use of the pure enantiomers of 8-chloro-6-sulfonyloxy-octanoic acid and its alkyl esters and of the pure enantiomers of 6,8-dichloro-octanoic acid and its alkyl esters |
| 03/19/1997 | EP0763005A1 TETRAHYDROINDENO[1,2-d][1,3,2]OXAZABOROLES AND THEIR USE AS ENANTIOSELECTIVE CATALYSTS |
| 03/13/1997 | WO1997009329A1 Azo derivatives of 5-aminosalicylic acid for treatment of inflammatory bowel disease |
| 03/12/1997 | EP0761663A1 Process for preparing optically active 3-hydroxy furan compounds |
| 03/12/1997 | EP0761642A2 Process for preparing 2-amino-1, 3-alkanediol or a derivative thereof, process for preparing optically active dihydrosphingosine derivatives and intermediates used in that process |
| 03/06/1997 | WO1997008128A1 Process for producing halogenated cyclopropane derivatives |
| 03/05/1997 | EP0760361A2 Process for the dehalogenation without racemisation of halogeno-substituted aryl-alkylamines |
| 03/05/1997 | EP0759917A1 Novel selective inhibitors of viral or bacterial neuraminidases |
| 03/05/1997 | EP0759915A1 Asymmetric synthesis of chiral secondary alcohols |
| 03/05/1997 | CN1144522A Substituted azetidinone compounds useful as hypocholesterolemic agents |
| 03/04/1997 | US5608119 (2S)-3-[(1R, 2S, 5R)-[5-methyl-2-(1-methylethyl)-cyclohexyl]oxy]-1, 2-propanediol, process for producing the same, and compositions containing the same |
| 02/26/1997 | EP0759425A2 Process for the preparation of optically active 1-aryl-alkylamines |
| 02/26/1997 | EP0759424A1 Process for producing optically active 2-hydroxy-4-arylbutyric acid or its ester, and intermediate therefor |
| 02/26/1997 | EP0698028B1 Enantioselective oxazaborolidine catalysts |
| 02/20/1997 | WO1997006147A1 Dinaphtazepinium salts useful as enantioselective epoxidation catalysts |
| 02/20/1997 | CA2228902A1 Dinaphtazepinium salts useful as enantioselective epoxidation catalysts |
| 02/18/1997 | CA2111445C Process for the preparation of intermediates in the synthesis of chiral thiazolidine-2,4-dione derivatives |
| 02/12/1997 | EP0757677A1 Benzocycloalkylazolethione derivatives |
| 02/12/1997 | EP0603414B1 (-)-ritodrine |
| 02/11/1997 | US5602108 Antitumor agents |
| 02/05/1997 | EP0756594A1 Preparation of arthropodicidal oxadiazines |
| 02/04/1997 | US5600047 Process for producing optically active olefin |
| 02/04/1997 | US5600015 Assymetric hydrogenation of isoprene derivatives |
| 01/22/1997 | EP0754696A1 Chiral unsymmetric diphosphine compounds and transition metal complexes containing them as ligands |
| 01/22/1997 | EP0648201B1 Enantioselective hydrogenation of the carbonyl bond using ruthenium complexes with biphosphine ligands |
| 01/21/1997 | US5596114 Enantioselective hydrogenation catalysts |
| 01/08/1997 | EP0752423A1 Process for the stereoselective preparation of (-)3a,6,6,9a-tetramethyl-perhydronaphtho(2,1-b)furan |
| 01/08/1997 | EP0751934A1 Substituted azetidinone compounds useful as hypocholesterolemic agents |
| 01/08/1997 | EP0751927A1 Synthesis of compounds with predetermined chirality |
| 01/07/1997 | US5591854 Enantioselective synthesis of seven-membered carbocycles and tropanes |
| 01/02/1997 | EP0751141A1 Optically active monophosphino carboxylic acid derivative |
| 12/27/1996 | EP0749973A1 Novel bisphosphines as catalysts for asymmetric reactions |
| 12/27/1996 | EP0749406A1 Process for the preparation of optically active cycloolefins |
| 12/27/1996 | EP0640089B1 Enantioselective oxazaborolidine catalysts |
| 12/25/1996 | CN1033640C 2-substituted-5-substituted-1, 3-oxathiolanes with antiviral properties |
| 12/19/1996 | WO1996040633A1 Small molecule inhibitors of rotamase enzyme activity |
| 12/18/1996 | EP0748326A1 Optically active diphosphines and method for preparing same by resolution of the racemic mixture |
| 12/17/1996 | US5585500 Chemical reduction of a pyrrolidinedione using activated alkali boron hydride |
| 12/11/1996 | EP0746551A1 Optically pure 4-aryl-2-hydroxytetronic acids |
| 12/11/1996 | EP0746410A1 Water-soluble chiral sulfonated binap catalyst for asymmetric synthesis of optically active compounds |
| 12/03/1996 | US5581007 Process for preparing optically active allophenylnorstatin derivatives |
| 11/28/1996 | WO1996037457A1 Asymmetric synthesis of (-) 6-chloro-4-cyclopropyl-ethynyl-4-trifluoromethyl-1,4-dihydro-2h-3,1-benzoxazin-2-one |
| 11/27/1996 | EP0744401A2 Process of preparation of optically active 2-piperazine carboxylic acid |
| 11/20/1996 | CN1033326C Process for preparing optically active isomers of 6-substituted purinyl piperazine derivatives |
| 11/19/1996 | CA2106200C Stereoselective preparation of substituted piperidines |
| 11/19/1996 | CA2080249C Preparation of substituted piperidines |
| 11/13/1996 | EP0624152B1 Process for preparing ketone enantiomer |
| 11/12/1996 | US5574182 Optically active compounds having plural chiral centers and production thereof |
| 11/07/1996 | WO1996034842A1 Separation of alpha-arylpropionic acid ester diastereomers by distillation |
| 11/06/1996 | CN1135216A Optically active imidazolidinone derivative and process for prodn. of same |
| 10/24/1996 | WO1996033183A1 Asymmetric epoxides, their synthesis and use |
| 10/24/1996 | CA2216866A1 Asymmetric epoxides, their synthesis and use |
| 10/23/1996 | EP0655950B1 Chiral catalysts and epoxidation reactions catalyzed thereby |
| 10/23/1996 | EP0532515B1 Preparation of substituted piperidines |
| 10/22/1996 | US5567841 α-phosphonosulfonate squalene synthetase inhibitors and method |
| 10/17/1996 | WO1996032400A1 Dihalogenated ferrocenes and processes for the preparation thereof |
| 10/15/1996 | US5565593 Chiral phospholanes via chiral 1,4-diol cyclic sulfates |
| 10/09/1996 | EP0736509A2 Processes for preparing optically active alcohols and optically active amines |
| 10/09/1996 | EP0736031A1 Improvements in or relating to chiral syntheses |
| 10/09/1996 | EP0736017A1 Improvements in or relating to chiral auxiliaries |
| 10/09/1996 | CN1132742A Method of preparing D-amino acid-N-(S)-alpha-alkylbenzylamide |
| 10/08/1996 | US5563309 Ferrocenyl diphosphines as ligands for homogeneous catalysts |
| 10/08/1996 | US5563295 Process for producing optically active carboxylic acid |
| 10/08/1996 | US5563290 Hydrogenating an itaconic acid compound in presence of rhodium compound and a 2,2?-bis(hydrocarbon residue-substituted) phosphine substituted alkyl)-1,1?-biferrocene compound |
| 10/03/1996 | WO1996030320A1 Preparation of cis-4-o-protected-2-cyclopentenol derivatives |
| 09/26/1996 | WO1996029295A1 Process for preparing asymmetric compound by using metal complex |
| 09/24/1996 | US5559267 Hydrogenation process using catalysts made from chiral phospholanes via chiral 1,4-diol cyclic sulfates |
| 09/19/1996 | WO1996028402A1 Stereoselective ring opening reactions |
| 09/18/1996 | EP0732337A1 Optically active asymmetric diphosphine and process for producing optically active substance in its presence |
| 09/10/1996 | US5554791 Reaction of aspartic acid and 1,2-dihaloethane |
| 09/10/1996 | US5554788 Process for the stereoselective synthesis of 3-substituted 2-thiomethylpropionic acids |
| 09/06/1996 | WO1996026933A1 Novel selective inhibitors of viral or bacterial neuraminidases |
| 09/04/1996 | EP0729969A1 Silated ferrocene-diphosphine ligands, inorganic or polymeric organic support to which these ligands are bound and metal complexes thereof, and their preparation and use |
| 09/04/1996 | EP0729941A1 Process for producing keto nitrile derivative and hexenone derivative |
| 09/04/1996 | EP0729939A2 Process for preparing optically active allophenylnorstatin derivatives, and intermediates for use therein |
| 09/03/1996 | US5552548 Enantioselective oxazaborolidine catalysts |
| 08/27/1996 | US5550291 Process for key intermediates for HIV protease inhibitors |
| 08/27/1996 | US5550285 Method for producing calcium salts of [S,S]-ethylenediamine-N,N'-disuccinic acid |
| 08/25/1996 | CA2170099A1 Silylated ferrocenyldiphosphines, silylated ferrocenyldiphosphines bound to inorganic or polymeric organic supports and also metal complexes thereof, their preparation and use |
| 08/22/1996 | WO1996025420A1 Chiral organometallic compounds |
| 08/14/1996 | EP0641333B1 Method for making intermediates useful in synthesis of retroviral protease inhibitors |
| 08/13/1996 | US5545758 Process for the preparation of diisopinocampheylchloroborane |
| 08/07/1996 | EP0724552A1 Process for preparing a chiral tetralone |