| Patents for C07B 53 - Asymmetric syntheses (6,231) |
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| 03/09/2000 | WO2000012467A1 N-hydroxyacylamino compounds, process for their preparation and pharmaceutical compositions containing them |
| 03/09/2000 | WO2000012449A1 Copper-catalyzed enantioselective allylic substitution reactions |
| 03/09/2000 | DE19840279A1 Neue chirale Diphosphonite auf Ferrocenbasis für die asymmetrische Katalyse New chiral ferrocene diphosphonites for asymmetric catalysis |
| 03/08/2000 | EP0984000A1 Process for producing amide derivatives and intermediate compounds |
| 03/07/2000 | US6034278 Method for producing optically active 1-phenylethylamines |
| 03/07/2000 | US6034277 Process for the preparation of 5,6-dihydroxy-2-amino-1,2,3,4-tetrahydronaphthalene derivatives |
| 03/02/2000 | WO2000011008A1 Asymmetric catalysis based on chiral phospholanes |
| 03/02/2000 | WO2000010992A2 Water-dispersible or water-soluble d-tocotrienol compounds and methods for making therefor |
| 03/02/2000 | WO2000010968A2 Novel aryl sulphonamide amino acid esters and analogues |
| 03/02/2000 | CA2341028A1 Novel aryl sulphonamide amino acid esters and analogues |
| 03/02/2000 | CA2340943A1 Asymmetric catalysis based on chiral phospholanes |
| 03/01/2000 | EP0982307A2 9 -Amino- and 9-nitro-camptothecin derivatives, process for their preparation and use as antitumor agents |
| 03/01/2000 | EP0981520A1 Efficient enantioselective addition reaction using an organozinc reagent |
| 02/29/2000 | US6031127 Synthesizing an antitumor agent without separating the l- and d-optical isomers at the final stage, from a starting material n-t-butoxycarbonyl-l-thyrosine, n-allyloxycarbonyl- or n-benzyloxycarbonyl-l-thyrosine |
| 02/24/2000 | WO2000009483A2 Process and intermediates for production of donepezil and related compounds |
| 02/24/2000 | WO2000009463A1 Stereoselective ring opening reactions |
| 02/24/2000 | DE19837627A1 New aminoacid esters of arylsulfonamides are useful for e.g. treating neurodegenerative diseases, pain, convulsions or bacterial or viral infections |
| 02/24/2000 | CA2339618A1 Stereoselective ring opening reactions |
| 02/17/2000 | WO2000008025A1 Synthesis of acyclic nucleoside derivatives |
| 02/17/2000 | WO2000007978A1 Aminomethylcarboxylic acid derivatives |
| 02/15/2000 | US6025531 Processes for preparing optically active alcohols and optically active amines |
| 02/15/2000 | US6025500 Heterogeneous catalytic reductive amination between alanylproline and ethyl-2-oxo-4-phenylbutyrate |
| 02/10/2000 | WO2000006532A2 Process for the preparation of r-(-)-carnitine |
| 02/09/2000 | EP0977742A1 The preparation of enantiomerically enriched oxazolones and alpha, alpha-disubstituted amino acids |
| 02/08/2000 | US6022936 Optically active phosphine derivative having vinyl group, polymer produced using the same as monomer, and transition metal complexes of these |
| 02/03/2000 | WO2000005402A1 Continuous process for preparing optically pure (s)-3,4-dihydroxybutyric acid derivatives |
| 02/03/2000 | WO2000005401A1 Continuous process for preparing optically pure (s)-3-hydroxy-gama-butyrolactone |
| 02/03/2000 | WO2000005400A1 Process for preparing optically pure (s)-3,4-dihydroxybutyric acid derivatives |
| 02/03/2000 | WO2000005399A1 Process for preparing optically pure (s)-3-hydroxy-gama-butyrolactone |
| 02/03/2000 | WO2000005398A1 Process for preparing alpha-(1,4) linked oligosaccharide |
| 02/03/2000 | CA2338757A1 Continuous process for preparing optically pure (s)-3,4-dihydroxybutyric acid derivatives |
| 02/03/2000 | CA2338756A1 Continuous process for preparing optically pure (s)-3-hydroxy-gama-butyrolactone |
| 02/03/2000 | CA2338755A1 Process for preparing alpha-(1,4) linked oligosaccharide |
| 02/03/2000 | CA2338752A1 Process for preparing optically pure (s)-3,4-dihydroxybutyric acid derivatives |
| 02/03/2000 | CA2338527A1 Process for preparing optically pure (s)-3-hydroxy-gama-butyrolactone |
| 02/02/2000 | EP0976734A2 Selective inhibitors of viral or bacterial neuraminidase |
| 02/02/2000 | EP0976729A1 Optically active cyclic amino acid ester derivatives and processes for producing the same |
| 02/02/2000 | CN1243509A Endothelin intermediates by asymmetric conjugate addition reaction using a chiral additive |
| 02/02/2000 | CN1243126A Method for preparing asymmetric lactone |
| 01/27/2000 | DE19820411A1 New chiral heterogeneous catalysts for enantio-selective hydrogenation, comprising rhodium, ruthenium or iridium diphosphane complex on mesoporous carrier |
| 01/26/2000 | EP0973742A1 Endothelin intermediates by asymmetric conjugate addition reaction using a chiral additive |
| 01/26/2000 | EP0670839B1 Process for the preparation of 9-amino camptothecin |
| 01/26/2000 | CN1242358A Process for prepn. of optically pure aminoalcohol |
| 01/20/2000 | WO2000002848A1 Novel salts of n-tert-butylhydroxylamine |
| 01/20/2000 | WO2000002843A1 Process for the preparation of optically active 1-arylalkylamines and intermediates therefor |
| 01/20/2000 | WO2000002834A1 Asymmetric metathesis reactions involving achiral and meso substrates |
| 01/20/2000 | CA2336527A1 Novel salts of n-tert-butylhydroxylamine |
| 01/19/2000 | CN1048498C Enantioselective 1, 3, 2-oxazaborolidine catalysts |
| 01/18/2000 | US6015926 Adding dialkylzinc to chiral additive, adding second additive to form chiral zinc complex, mixing with organometallic reagent, reacting with carbonyl compound to form desired alcohol |
| 01/18/2000 | US6015919 Hydrogenation catalysts |
| 01/13/2000 | WO2000001687A1 Benzothiepines having activity as inhibitors of ileal bile acid transport and taurocholate uptake |
| 01/13/2000 | WO2000001641A1 Chiral surfaces |
| 01/13/2000 | DE19831137A1 Asymmetric catalytic hydrogenation of prochiral olefins using iridium complex catalyst |
| 01/13/2000 | CA2336315A1 Benzothiepines having activity as inhibitors of ileal bile acid transport and taurocholate uptake |
| 01/13/2000 | CA2277443A1 Process for the preparation of chiral lactones |
| 01/13/2000 | CA2276543A1 Method for manufacturing (3s,4r)-4-¬(r)-1'-formylethyl| azetidin-2-one derivatives |
| 01/11/2000 | US6013833 Process for the preparation of enantiomerically pure 3-hydroxyoctanedioic acid diesters by asymmetric catalytic hydrogenation |
| 01/11/2000 | US6013829 Reducing a malonic diester, hydriding to obtain a diol, acetylating to obtain a monoester, oxidation, saponification and thioacylating; enzyme inhibitors; proteases; optics; antisecretory and hypotensive agents |
| 01/05/2000 | EP0968220A1 6,6'-bis-(1-phosphanorbornadiene) diphosphines |
| 01/05/2000 | EP0787115B1 PROCESS FOR PRODUCING DERIVATIVES OF 4a,5,9,10,11,12,-HEXAHYDRO-6H-BENZOFURO[3a,3,2-ef][2]BENZAZEPINE |
| 01/05/2000 | CN1240212A Process for reducing prochiral ketone to produce optically active alcohol of high optical purity |
| 12/29/1999 | EP0967015A2 Use of ferrocenyl ligands in catalytic enantioselective hydrogenation |
| 12/28/1999 | US6008401 Process for producing an optically active compound |
| 12/23/1999 | DE19921924A1 Verwendung von Ferrocenylliganden zur katalytischen enantioselektiven Hydrierung Use of ferrocenyl ligands for the catalytic enantioselective hydrogenation |
| 12/23/1999 | DE19827046A1 New chiral molybdenum compounds and corresponding catalysts |
| 12/22/1999 | EP0965574A2 Process for enantioselective hydrogenation |
| 12/21/1999 | US6005133 Enantioselective oxazaborolidine catalysts |
| 12/21/1999 | US6005119 Process for preparing pyrrolidine derivatives |
| 12/21/1999 | CA1340854C Process for the preparation of 3-substituted derivatives of 1-amino 2-hydroxy-propane |
| 12/15/1999 | EP0963972A2 Stereoselective reduction of carbonyl compounds |
| 12/15/1999 | CN1238327A Stereoselective reduction of carbonyl compounds |
| 12/14/1999 | US6002037 Chiral organoalanes and their organic derivatives via zirconium-catalyzed asymmetric carboalumination of terminal alkenes |
| 12/09/1999 | WO1999062917A1 Production of optically active phospholanes |
| 12/09/1999 | CA2273643A1 Stereoselective reduction of carbonyl compounds |
| 12/08/1999 | CN1047173C Optically active beta-aminoalkyxoborane complex |
| 12/07/1999 | US5998625 Asymmetric conjugate addition reaction using a chiral additive |
| 12/07/1999 | US5997840 Chiral solid catalyst, its preparation and its use for the production of substantially enantiomerically pure products |
| 12/02/1999 | DE19824121A1 Herstellung optisch aktiver Phospholane, deren Metallkomplexe und Anwendung in der asymmetrischen Synthese Preparation of optically active phospholanes, their metal complexes and application in asymmetric synthesis |
| 11/30/1999 | US5994555 Process for the production of a β-amino alcohol |
| 11/30/1999 | US5994391 Benzothiepines having activity as inhibitors of ileal bile acid transport and taurocholate uptake |
| 11/25/1999 | WO1999059721A1 Catalytic asymmetric hydrogenation, hydroformylation, and hydrovinylation via transition metal catalysts with phosphines and phosphites |
| 11/23/1999 | US5990320 Forming a transition metal complex, as hydrogenation and isomerization catalysts |
| 11/23/1999 | US5990311 Producing 5,6-dimethyl-2-(4-fluorophenylamino)-4-(1-methyl)-1,2,3,4 -tetrahydroisoquinolin-2-yl)pyrimidine by condensing 5,6-dimethyl-2-(4-fluorophenylamino)pyrimidine with 1-methyl-1,2,3,4-tetrahydroisoquinoline |
| 11/23/1999 | CA2116685C (-)-ritodrine |
| 11/11/1999 | WO1999056699A2 Main-group metal-based asymmetric catalysts and applications thereof |
| 11/11/1999 | CA2329316A1 Main-group metal-based asymmetric catalysts and applications thereof |
| 11/10/1999 | EP0955295A1 Therapeutically active levorotatory and dextrorotatory 1-((4-chlorophenyl)phenylmethyl) piperazines |
| 11/10/1999 | CN1234392A Optically active beta-alkamine compound and use thereof |
| 11/10/1999 | CN1046283C Process for preparation of 9-amino camptothecin |
| 11/09/1999 | US5981809 Reducing optically active starting material that includes an alpha-, beta-, or gamma-hydroxy or mercapto aldehyde, ketone, ester, or amide in anhydrous solvent, adding coreactant substituted by one or two hydroxyl or mercapto groups |
| 11/09/1999 | US5981794 Reacting a beta-benzoylacrylic acid derivative with a 1-arylethylamine derivative |
| 11/09/1999 | US5981782 Exhibits high catalytic activity and allows asymmetric reaction in a high asymmetric yield to obtain a reaction product having a high optical purity |
| 11/09/1999 | US5981771 Intermediate for raw material of polymer, synthetic material for medicines, liquid crystals; asymmetric hydrogenation of 4-methylene-2-oxetanone in the presence of ruthenium-iodo-optically active phosphine catalyst complex |
| 11/04/1999 | WO1999032225A3 Catalytic composition based on chiral ligands with molybdenum, tungsten or chromium and method for asymmetric alkylation of allylic substrates |
| 10/21/1999 | WO1999052915A1 Chiral phosphorated ligands useful in catalysts |
| 10/21/1999 | WO1999052886A1 Kinetic resolution of olefins |
| 10/21/1999 | WO1999052840A1 Asymmetric synthesis of 2-aryl-1-substituted butan-2,3-diols |
| 10/21/1999 | CA2328727A1 Asymmetric synthesis of 2-aryl-1-substituted butan-2,3-diols |
| 10/21/1999 | CA2328299A1 Kinetic resolution of olefins |
| 10/13/1999 | EP0871621A4 Asymmetric synthesis catalyzed by transition metal complexes with new chiral ligands |