| Patents for C07B 53 - Asymmetric syntheses (6,231) |
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| 06/03/2003 | US6573389 Bidentate organophosphorous ligands and their use |
| 05/30/2003 | WO2003035595A8 Novel norbornane and norbornene derivatives, use thereof and perfumed products containing same. |
| 05/29/2003 | US20030100774 Process for synthesis of 2-yl chroman derivatives |
| 05/29/2003 | US20030100598 Novel esters derived from (rr,ss)-2-hydroxybenzoate of 3-(2-dimethylaminomethyl-1-hydroxycyclohexyl)phenyl |
| 05/29/2003 | US20030100515 Benzophenone glycopyranosides, preparation and therapeutic use |
| 05/28/2003 | EP1313712A2 Process and intermediates for preparing retroviral protease inhibitors |
| 05/28/2003 | EP1206427A4 Chiral ligands, transition-metal complexes thereof and uses thereof in asymmetric reactions |
| 05/28/2003 | EP1175426B1 Bidentate organophosphorous ligands and their use |
| 05/28/2003 | EP1150988B1 Phosphoramidate, and mono-, di-, and tri-phosphate esters of (1r, cis)-4-(6-amino-9h-purin-9-yl)-2-cyclopentene-1-methanol as antiviral agents |
| 05/28/2003 | EP1117627B1 Transfer hydrogenation process |
| 05/27/2003 | US6569842 Method of preparing and use of prodrugs of betulinic acid derivatives |
| 05/22/2003 | WO2003042135A2 P-chiral phospholanes and phosphocyclic compounds and their use in asymmetric catalytic reactions |
| 05/22/2003 | WO2003041728A1 Novel phenyl-propargylether derivatives |
| 05/22/2003 | US20030097005 Method for the preparation of enantiomerically enriched compounds |
| 05/22/2003 | US20030097002 Enantioselective reactions using two-component chiral phase transfer catalysts in multiphasic systems |
| 05/22/2003 | US20030096374 Synthesis of oligoketides |
| 05/22/2003 | CA2466449A1 P-chiral phospholanes and phosphocyclic compounds and their use in asymmetric catalytic reactions |
| 05/21/2003 | EP1311517A1 Cycloaliphatic/aromatic diphosphines and use thereof in catalysis |
| 05/21/2003 | EP0902011B1 Gamma-oxo-homophenylalanine derivatives and process for producing homophenylalanine derivatives by reducing the same |
| 05/21/2003 | EP0827943B1 Processes for the reduction of carbonyl compounds |
| 05/21/2003 | CN1109030C Processes for preparing intermediate product used in method of diastereoselective syntheses of nucleosides |
| 05/20/2003 | US6566552 Reduction of an alkyl 4-chloro-3 -oxobutyrate or -oxobutyr amide to 4-chloro-3 -hydroxybutyrate or -hydroxybutyramide in the presence of ruthenium complex reduction catalyst followed by quaternization with trimethylamine |
| 05/20/2003 | US6566298 Diphosphines |
| 05/15/2003 | WO2003040149A2 Asymmetric catalysis based on chiral phospholanes and hydroxyl phospholanes |
| 05/15/2003 | WO2003040138A1 Dimeric compounds and their use as anti-viral agents |
| 05/15/2003 | WO2003040119A1 Angiogenesis inhibitors |
| 05/15/2003 | US20030092634 Novel compounds and compositions as protease inhibitors |
| 05/15/2003 | US20030092142 Process for the preparation of chiral alpha-hydroxycarboxylic acids |
| 05/15/2003 | US20030092140 Novel polyketides and antibiotics |
| 05/14/2003 | EP1310477A2 Process for the preparation of chiral alpha-hydroxycarboxylic acids |
| 05/14/2003 | EP1309605A1 Prodrugs of betulinic acid derivatives for the treatment of cancer and hiv |
| 05/14/2003 | EP1309552A1 Compounds and inhibitors of phospholipases |
| 05/14/2003 | EP1140769B1 Method for producing glyoxylic acid esters or the hydrates thereof |
| 05/13/2003 | US6562967 Drug screening; purity |
| 05/13/2003 | US6562966 Combining a racemic or a diastereomeric mixture of a chiral substrate with a nucleophile, in the presence of a chiral non-racemic catalyst |
| 05/13/2003 | US6562608 Coenzymes useful for the synthesis of L-carnitine |
| 05/08/2003 | US20030088104 Circular dichroism |
| 05/08/2003 | US20030087401 Quaternary ammonium or phosphonium phase transfer catalyst |
| 05/07/2003 | EP1308435A2 Process for producing optically active amino alcohols |
| 05/07/2003 | EP1307442A2 Method for producing lipoic acid and dihydrolipoic acid |
| 05/07/2003 | EP1307427A2 Process for the cyanation of aldehydes |
| 05/07/2003 | EP1307418A2 Process for the preparation of chiral 1,4-diaryl-2-fluoro-2-butenes |
| 05/07/2003 | EP1228034A4 Chiral phosphines, transition metal complexes thereof and uses thereof in asymmetric reactions |
| 05/07/2003 | EP1115680B1 Allylic substitution reactions |
| 05/07/2003 | EP1015415B1 Novel stereoselective processes for the preparation of gabapentin analogues |
| 05/07/2003 | CN1416414A Process for preparation of (R)-2-bromo-3-phenyl-propionic acid |
| 05/07/2003 | CA2411218A1 Process for the preparation of chiral alpha-hydroxycarboxylic acids |
| 05/06/2003 | US6559283 Poly-β-amino acids, preparation and use |
| 05/02/2003 | EP1305324A1 Use of chiral diphosphines as optically active ligands |
| 05/02/2003 | EP1305278A1 Ruthenium complexes and their use in asymmetric hydrogenation |
| 05/02/2003 | EP1305270A1 Kinetic resolutions of chiral 2- and 3-substituted carboxylic acids |
| 05/02/2003 | EP0941231B1 Heteroarylic-arylic diphosphines as chiral ligands |
| 05/01/2003 | WO2003035599A1 Quarternary ammonium compounds and their use as antimuscarinic agents |
| 05/01/2003 | WO2003035595A1 Novel norbornane and norbornene derivatives, use thereof and perfumed products containing same. |
| 04/30/2003 | CN1414946A Novel esters derived from (RR,SS)-2-hydroxybenzoate of 3-(2-dimethylaminomethyl-1-hydroxy cyclohexyl) phenyl |
| 04/30/2003 | CN1414944A Process of preparing tolterodine and analogues thereof as well as intermediates prepared in the process |
| 04/30/2003 | CA2409906A1 Process for producing optically active amino alcohols and intermediates therefor |
| 04/24/2003 | WO2003033510A1 Novel chiral ligands, transition metal complexes thereof, and the catalytic use of the same |
| 04/23/2003 | EP1303478A1 Process for the preparation of substituted octanoyl amides |
| 04/23/2003 | EP1303475A1 Method for producing enantiomer-free 6,8 dihydroxy octanoic acid esters by means of asymmetric, catalytic hydrogenation |
| 04/23/2003 | CN1106389C Efficient enantioselective addition reaction using organozinc reagent |
| 04/22/2003 | US6552223 N-hydroxacylamino compounds, process for their preparation and pharmaceutical compositions containing them |
| 04/22/2003 | US6552204 Synthesis of 3,6-dialkyl-5,6-dihydro-4-hydroxy-pyran-2-one |
| 04/22/2003 | US6551467 Microwave facilitated allyllic substitution |
| 04/17/2003 | WO2003031456A2 Ligands for asymmetric reactions |
| 04/17/2003 | WO2003031428A1 Stereospecific process for the synthesis of 2-yl chroman derivatives |
| 04/17/2003 | WO2003031402A1 Process for preparation of 19-norvitamin d derivatives |
| 04/17/2003 | WO2003031401A1 Process for preparation of 19-norvitamin d derivatives |
| 04/17/2003 | US20030073868 Non-C2-symmetric bisphosphine ligands as catalysts for asymmetric hydrogenation |
| 04/17/2003 | US20030073854 Process for ascorbic acids using alkaline earth silicate catalysts |
| 04/17/2003 | CA2462860A1 Stereospecific process for the synthesis of 2-yl chroman derivatives |
| 04/17/2003 | CA2458430A1 Ligands for asymmetric reactions |
| 04/16/2003 | EP1301452A2 Process for preparing (-)menthol and similar compounds |
| 04/16/2003 | EP1109819B1 Ferrocene-based diphosphonites for asymmetrical catalysis |
| 04/16/2003 | EP1067127B1 Novel beta-diketone compounds, beta-diketone compounds coordinated to metal, method of organic synthesis with these, and catalyst |
| 04/16/2003 | EP0674634B1 Process for preparing substituted 1,3-oxathiolanes with antiviral properties |
| 04/15/2003 | US6548693 Nitriloxy derivatives of (R) and (S)-carnitine |
| 04/15/2003 | US6548665 Asymmetric synthesis of a key intermediate for making benazepril and analogues thereof |
| 04/15/2003 | US6548567 Ionic compounds with delocalized anionic charge, and their use as ion conducting components or as catalysts |
| 04/10/2003 | WO2003029267A2 METHOD OF PRODUCING 17β-(SUBSTITUTED)-3-OXO-Δ1,2-4-AZASTEROIDS AND INTERMEDIATES |
| 04/10/2003 | WO2003029259A1 Novel disphospines, their complexes with transition metals and their use in asymmetric synthesis |
| 04/10/2003 | WO2003029190A1 Processes and compositions for the production of chiral amino-nitriles |
| 04/10/2003 | CA2461221A1 Method of producing 17.beta.-(substituted)-3-oxo-.delta.1,2-4-azasteroids and intermediates |
| 04/09/2003 | EP1299401A1 Chiral ligands for asymmetric catalysis |
| 04/09/2003 | EP1299342A1 Method for producing 3,3-diarylpropylamines |
| 04/09/2003 | CN1409702A Methods for asymmetrically synthesizing enantiomer of casodex, its derivatives and intermediate thereof |
| 04/08/2003 | US6545050 Aryl sulphonamide amino acid esters and analogues |
| 04/03/2003 | US20030065207 Processes and compositions for the production of chiral amino-nitriles |
| 04/03/2003 | US20030065181 Novel chiral phosphorus ligands and the use thereof in the production of optically active products |
| 04/02/2003 | EP1298136A2 Chiral monophosphorus compounds |
| 04/02/2003 | EP1296994A1 Ferrocenyl diphosphines and their use |
| 04/02/2003 | EP1296944A1 Sulfonamide derivatives |
| 04/02/2003 | EP1296927A1 Preparation of (r)-2-alkyl-3-phenylpropionic acids |
| 04/02/2003 | EP1296921A1 Cyclic ketones, their preparation and their use in the synthesis of amino acids |
| 04/02/2003 | EP0934923B1 Optically active erythro-3-amino-2-hydroxybutyric esters and process for preparing said esters |
| 04/02/2003 | EP0880518B1 A process of making 3-phenyl-1-methylenedioxyphenyl-indane-2-carboxylic acid derivatives |
| 04/02/2003 | CN1407967A Stereoselective synthesis of cyclic amino acids |
| 04/02/2003 | CN1104416C Racemisation and asymmetric transformation process used in manufacture of levobupivacaine and analogues thereof |
| 04/01/2003 | US6541655 Catalytic compositions and methods for asymmetric allylic alkylation |
| 04/01/2003 | US6541471 Useful as a TXA2 receptor antagonist and a 5-HT2 receptor antagonist |