Patents
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Patents for C07B 53 - Asymmetric syntheses (6,231)
11/2003
11/19/2003EP1245551B1 1,2-bis(methyl(1,1,3,3-tetramethylbutyl)-phosphino)ethane, process for the preparation thereof, transition metal complexes containing the same as the ligand and uses thereof
11/19/2003EP1216250B1 Thienoisoxazolyl and thienylpyrrazolyl phenoxy substituted propyl derivatives useful as d4 antagonists
11/18/2003US6649763 Optically active quinoline carboxylic acid derivatives with 7-pyrrolidine substituents causing optical activity and a process for the preparation thereof
11/13/2003WO2003093292A1 17α-FLUOROALKYL-11β-BENZALDOXIME-STEROIDS, METHOD FOR THE PRODUCTION THEREOF, PHARMACEUTICAL PREPARATIONS CONTAINING SAID STEROIDS AND THE USE THEREOF IN THE PRODUCTION OF MEDICAMENTS
11/13/2003WO2003093285A1 Ferrocenyl ligands and method for the production of such ligands
11/13/2003WO2003093222A1 Novel form of n-(trans-4-isopropylcyclohexylcarbonyl)-d-phenylalanine
11/13/2003WO2003092578A2 Further syntheses of cyproterone acetate
11/13/2003WO2003057649A3 Ammonium ionophore
11/13/2003US20030212292 Shortened synthesis of 3,3-diarylpropylamine derivatives
11/13/2003US20030212290 Asymmetric synthesis of pregabalin
11/13/2003US20030212284 Stereoisomers or racemic mixture of complex
11/13/2003CA2482997A1 Further syntheses of cyproterone acetate
11/13/2003CA2481322A1 Novel form of n-(trans-4-isopropylcyclohexylcarbonyl)-d-phenylalanine
11/11/2003CA2112258C Chiral phospholanes via chiral 1,4-diol cyclic sulfates
11/06/2003WO2003091207A2 Method of preparing amine stereoisomers
11/06/2003WO2003091196A1 Process for the enantioselective synthesis of propargyl alcohol derivatives of r configuration from the racemic mixtures thereof
11/06/2003US20030208075 Process for making chiral 1,4-disubstituted piperazines
11/06/2003US20030208074 Reacting protected heterocyclic amines in the presence of bases and solvents, to form chemical intermeadiates used as chemokine receptor antagonists
11/06/2003US20030208072 Process for the manufacture of organic compounds
11/06/2003US20030207790 Isomer composition excellent in chemical resistance containing optically active trans-1-(2,2,6-trimethylcyclohexyl)-2-buten-1-one and fragrance compositions containing the isomer composition
11/06/2003CA2482432A1 Method of preparing amine stereoisomers
11/05/2003EP1359154A1 Further syntheses of cyproterone acetate
11/05/2003EP1210318B1 Method for the production of adrenaline
10/2003
10/30/2003WO2003040149A3 Asymmetric catalysis based on chiral phospholanes and hydroxyl phospholanes
10/30/2003US20030204112 Hydrogenation of prochiral ketones
10/30/2003US20030204089 Enantiomers of 1-[(4-chlorophenyl) phenylmethyl]-4-[(4-methylphenyl) sulfonyl] piperazine
10/29/2003EP1357107A1 Indanones and carbamate, and their use in the preparation of arthropodicial oxadiazines
10/29/2003EP1357106A1 Method of synthesizing alpha-ketol unsaturated fatty acid
10/29/2003EP1355912A1 Ligands and their use
10/29/2003EP1355872A2 Process for stereoselective synthesis of prostacyclin derivatives
10/29/2003EP1355737A2 Asymmetric ruthenium hydrogenation catalysts and processes
10/29/2003EP1141374B1 Method for producing optically active 1-amino-4-(hydroxymethyl)-cyclopent-2-ene derivatives
10/29/2003CN1452603A Process for preparing (-) mentrol and similar compounds
10/23/2003WO2003087026A1 2-(2,6-dichlorophenyl)-diarylimidazoles
10/23/2003WO2003086605A2 Functionalized ionic liquids, and methods of use thereof
10/23/2003US20030199713 Catalyst for asymmetric (transfer) hydrogenation
10/23/2003US20030199706 Process for the cyanation of aldehydes
10/23/2003US20030199691 2-(2,6-dichlorophenyl)-diarylimidazoles
10/23/2003CA2482544A1 2-(2,6-dichlorophenyl)-diarylimidazoles
10/23/2003CA2481202A1 Functionalized ionic liquids, and methods of use thereof
10/22/2003EP1354883A1 Hydrogenation of prochiral ketones
10/22/2003EP1354865A1 Process for the preparation of aromatic aldehydes via ozonolysis of aromatic alkenes
10/22/2003EP1353894A2 Synthesis of ketosulfone esters
10/22/2003EP1177167B1 High purity (1r, 2s, 4r)-(-)-2-[(2'-(n,n-dimethylamino)-ethoxy)]-2-[phenyl]-1,7,7-tri-[methyl]-bicyclo[2.2.1]heptane and pharmaceutically acceptable acid addition salts thereof, process for the preparation of these compounds and medicaments containing them.
10/22/2003EP1140745B1 Colchinol derivatives as vascular damaging agents
10/21/2003US6635784 Process for the preparation of enantiomerically-enriched cyclopropylalanine derivates
10/16/2003WO2003084971A1 Bisphosphines as bidentate ligands
10/16/2003WO2003084942A2 Stereoselective alkylation of chiral 2-methyl-4-protected piperazines
10/16/2003WO2003084933A2 Method for the production of chiral imidazolidin-2-ones
10/16/2003WO2003070701A3 Syntheses of quinazolinones
10/16/2003US20030195369 Optically active chiral diphosphine ligands
10/16/2003US20030195269 Ionic compounds with delocalized anionic charge, and their use as ion conducting components or as catalysts
10/16/2003CA2481037A1 Bisphosphines as bidentate ligands
10/16/2003CA2480481A1 Stereoselective alkylation of chiral 2-methyl-4-protected piperazines
10/15/2003EP1351918A1 Preparation of enantiomerically pure hydroxy esters and acids
10/15/2003EP1351913A2 1,4-diaryl-2,3-difluoro-2-butene insecticidal and acaricidal agents
10/15/2003CN1449388A Process and intermediates for preparing retroviral protease inhibitors
10/14/2003US6632969 Method for separating a diphosphine diastereoisomers
10/14/2003US6632954 Chelate compounds
10/14/2003US6632953 Metal complex comprising a phospholane as claimed in any of claim 1 and a central atom selected from the group of Rh, Ru, Ir, Pd, Pt, Ni. asymmetric hydrogenation of compounds by reacting the starting compounds to be hydrogenated with
10/14/2003CA2065476C Optically active secondary amine compound, process for producing optically active secondary amine compound and process for producing optically active carboxylic acid by using saidcompound
10/09/2003WO2003082812A2 Process for the preparation of 2-ethoxy-3-[4-(2-{methanesulphonyloxyphenyl}ethoxy) phenil] propanoic acid
10/09/2003WO2003050063A3 PROCESS FOR THE SYNTHESIS OF CHIRALLY PURE β-AMINO-ALCOHOLS
10/09/2003WO2002038565A3 7-(r)-amino-triazolopyrimidines, the production thereof and use of the same for combating phytopathogenic fungi
10/09/2003US20030191340 Catalytic compositions and methods for asymmetric allylic alkylation
10/09/2003US20030191324 A N,O-bis(diphenylphosphino)-2-azetidine derivatives, a transition metal complex for use as hydrogenation catalysts
10/09/2003CA2478650A1 Process for the preparation of 2-ethoxy-3-[4-(2-{methanesulphonyloxyphenyl}ethoxy) phenil] propanoic acid
10/08/2003EP1070075B1 Chiral phosphorated ligands useful in catalysts
10/08/2003EP0626967B1 Process for preparing enantiomerically pure fluorinated epoxychromans
10/08/2003CN1447816A Method for selective production of racemic metallocene complexes
10/02/2003WO2003080855A2 Deracemisation of amines
10/02/2003WO2003079975A2 Process for the manufacture of optically active 3-substituted lactams by asymmetric hydrogenation of 3-alkylidenelactams
10/02/2003US20030187296 Alkenylation, hydrogenation by starting acetoxycyclopent-2-en-1-one compound, removing acetoxy group, to form 3-alkylcyclopentanone; chemical intermediates for the synthesis of gabapentin
10/02/2003US20030187249 Main-group metal-based asymmetric catalysts and applications thereof
10/02/2003US20030186945 Method of preparing and use of prodrugs of betulinic acid derivatives
10/02/2003US20030186396 Method for the enzymatic resolution of the racemates of aminomethyl-aryl-cyclohexanol derivatives
10/01/2003EP1347984A2 A process for the preparation of taxan derivatives
10/01/2003EP1200386B1 Process for the preparation of naproxene nitroxyalkylesters
10/01/2003EP1165479B1 Preparation of carvone
10/01/2003EP0928287B1 Ionic compounds with delocalized anionic charge, their use as components of ionic conductors or catalyst
10/01/2003CN1445224A Method for preparing arylaminopropanol
10/01/2003CN1122660C Propionic acid derivative and preparing method thereof
09/2003
09/25/2003WO2003078420A2 Process for making chiral 1,4-disubstituted piperazines
09/25/2003WO2003078399A1 Process for asymmetric hydrogenation of hexahydroquinoline salts
09/25/2003WO2003005010A3 Method for producing optically active cyanohydrins
09/25/2003US20030181765 Reacting an azide compound with an amine to form an intermediate, reducting the azide of the intermediate to form amine; amidation, reduction of azide, azidation, blocking hydroxy group, lactonization and deblocking
09/25/2003US20030181736 Diphosphines
09/25/2003US20030181466 Synthesis of 4,5-dihydro-pyrazolo [3,4-c] pyrid-2-ones
09/25/2003US20030181319 Process for preparing nonracemic chiral alcohols
09/25/2003US20030181318 Process for preparing nonracemic chiral alcohols
09/25/2003CA2478275A1 Process for asymmetric hydrogenation of hexahydroquinoline salts
09/25/2003CA2477906A1 Process for making chiral 1,4-disubstituted piperazines
09/24/2003EP1347036A2 Isomer composition excellent in chemical resistance containing optically active trans-1(2,2,6-trimethylcyclohexyl)-2-buten-1-one and fragrance composition containing the isomer composition
09/24/2003EP1346977A1 Method for producing aryl-aminopropanols
09/24/2003EP1346972A1 Process for producing optically active halohydrin compound
09/24/2003EP1346767A1 Multifunctional catalyst useful in the synthesis of chiral vicinal diols and process for the preparation thereof
09/24/2003CN1444580A Method for producing lipoic acid and dihydrolipoic acid
09/24/2003CN1122039C Process for reducing prochiral ketone to produce optically active alcohol of high optical purity
09/23/2003US6624320 Asymmetric phosphine ligand
09/23/2003US6624248 High molecualr weight polymers
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