Patents for C07B 53 - Asymmetric syntheses (6,231)
03/2002
03/20/2002EP1187835A1 Optically active quinoline carboxylic acid derivatives having 7-pyrrolidine substitutes causing optical activity and a process for preparing thereof
03/20/2002EP1187812A2 Substituted phenylcyclohexane carboxylic acid amides and their use as adenosine uptake inhibitors
03/20/2002EP1187805A1 Process for preparing r-(-)-carnitine from s-(-)-chlorosuccinic acid or from a derivative thereof
03/20/2002EP1187798A1 PRODUCTION OF OPTICALLY ACTIVE $g(a)-HYDROXYACETALS
03/20/2002EP0782569B1 Racemisation process used in the manufacture of levobupivacaine and analogues thereof
03/19/2002US6359165 Asymmetric hydrogenation of β-keto esters
03/19/2002US6359012 Method for making 24(S)-hydroxyvitamin D2
03/14/2002US20020032351 Process for the preparation of chiral isofluoroenes
03/14/2002US20020032338 Enantiomerically pure compounds by reacting water and carbocycle or heterocycle having an electrophilic center in the presence of an asymmetric tetradentate ligand complexed with a metal atom, which has a geometric shape
03/14/2002US20020032329 Method for the preparation of tetrahydrobenzothiepines
03/13/2002EP1186609A2 Diphosphines
03/13/2002EP1185488A1 Sulphonylamides and carboxamides and their use in asymmetrical catalysis
03/13/2002EP1071640B1 Asymmetric synthesis of 2-aryl-1-substituted butan-2,3-diols
03/13/2002EP0756594B1 Preparation of arthropodicidal oxadiazines
03/13/2002CN1340043A Phenylalaninol derivatives
03/12/2002US6355848 Reducing an optically active acid to form optically active alcohols with catalytic hydrogenation
03/12/2002US6355822 Process for selective reduction
03/12/2002US6355813 Intermediates useful in preparing these compounds
03/11/2002CA2357261A1 Diphosphines
03/07/2002WO2002018391A1 Compounds containing oxazolidinone moiety and uses thereof
03/07/2002WO2002018349A2 Process and intermediates for preparing retroviral protease inhibitors
03/07/2002US20020028958 Useful as chemical intermediates for prostaglandins and drugs
03/07/2002CA2731273A1 Processes and intermediates for preparing retroviral protease inhibitors
03/07/2002CA2421309A1 Compounds containing oxazolidinone moiety and uses thereof
03/06/2002CN1339023A Improved process for preparation of non-hydroscopic salts of L(-)-Carnitine
02/2002
02/28/2002WO2002016395A1 Prodrugs of betulinic acid derivatives for the treatment of cancer and hiv
02/28/2002WO2001074741A3 Catalytic asymmetric desymmetrization of meso compounds
02/28/2002US20020026067 Titanium halides, sulfonates or diolates
02/28/2002DE10040726A1 Cycloaliphatisch-aromatische Diphosphine und ihre Verwendung in der Katalyse Cycloaliphatic-aromatic diphosphines and their use in catalysis
02/27/2002EP1182205A1 Chiral diphosphines via 2,3 -sigmatropic rearrangement.Application in asymmetric transition metal catalysis
02/27/2002CN1337947A Acetylenic sulfonamide thiol TACE inhibitors
02/27/2002CN1337940A A process for preparing (R)-4-cyano-3-hydroxybutyric acid ester
02/27/2002CN1337938A Novel method for preparing chiral amino acids
02/26/2002US6350910 Stereospecific isomerisation of allylamines with the aid of immobilized phosphorated chiral ligands
02/21/2002WO2002014330A1 Cycloaliphatic/aromatic diphosphines and use thereof in catalysis
02/21/2002WO2001085668A8 Optically active 2-aminotetralin derivatives, the processes for the preparation thereof and the therapeutical use of pharmaceutical compositions containing them
02/21/2002WO2001055175A3 Process for the preparation of acetyl-amidiniophenylalanyl-cyclohexylglycyl-pyridinioalaninamides
02/20/2002EP1180095A1 4-cyano-3-hydroxy butanoyl hydrazines, derivatives and process for the preparation thereof
02/20/2002EP1180035A1 NON-CALCEMIC, ANTIPROLIFERATIVE, TRANSCRIPTIONALLY ACTIVE SULFUR-CONTAINING ANALOGS OF 1$g(a), 25-DIHYDROXY VITAMIN D 3?
02/20/2002CN1336909A Method for producing L-phenylephrine hydrochloride
02/19/2002US6348620 Method for homogeneous enantioselective hydrogenation using catalytic ferrocenyl bis-phosphine complexes
02/19/2002US6348612 Chiral amido-phosphine-phosphinite compounds
02/19/2002US6348608 Catalytic asymmetric epoxidation
02/14/2002WO2002012253A1 Use of chiral diphosphines as optically active ligands
02/14/2002WO2002012181A1 Novel diamines having a casr modulating activity
02/14/2002WO2002012155A2 Process for the preparation of chiral 1,4-diaryl-2-fluoro-2-butenes
02/14/2002WO2001042173A3 Method for the preparation of enantiomerically enriched compounds
02/14/2002CA2417836A1 Use of chiral diphosphines as optically active ligands
02/13/2002EP1178945A1 Reactions using lewis acids
02/12/2002US6346652 Desymmetrization, catalysis with amine metal substrate
02/07/2002WO2002010096A1 Kinetic resolutions of chiral 2- and 3-substituted carboxylic acids
02/07/2002WO2002010095A2 Process for the cyanation of aldehydes
02/07/2002US20020016513 Use of molecular weight-enlarged catalysts in a process for asymmetric, continous hydrogenation, novel molecular weight-enlarged ligands and catalysts
02/07/2002US20020016475 Does not require high pressure or temperature, not susceptible to air or sulfur poison; easy to handle
02/07/2002US20020016473 Enantioselectivity of alpha,beta-unsaturated aldehydes
02/07/2002DE10036516A1 Verfahren zur Herstellung von enantiomerenreinen 6,8-Dihydroxyoctansäureestern durch assymetrische katalytische Hydrierung A process for the preparation of enantiomerically pure 6,8-dihydroxyoctanoic acid esters by asymmetric catalytic hydrogenation
02/07/2002CA2418116A1 Process for the cyanation of aldehydes
02/07/2002CA2416303A1 Kinetic resolutions of chiral 2- and 3-substituted carboxylic acids
02/06/2002EP1177169A1 6- [(aryl and heteroaryl)oxy] methyl]naphthalene -2-carboximidamide derivatives, preparation and therapeutic application thereof
02/06/2002EP1177167A2 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.
02/06/2002EP1177166A2 Process for preparing (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
02/06/2002CN1334799A Alpha-substitution of unprotected beta-amino ester compounds
01/2002
01/31/2002WO2002008189A1 Compounds and inhibitors of phospholipases
01/31/2002WO2002008172A1 Process for the preparation of substituted octanoyl amides
01/31/2002WO2002008169A1 Ruthenium complexes and their use in asymmetric hydrogenation
01/31/2002WO2001055060A3 Chiral ionic liquids
01/31/2002US20020013475 Catalyst for unsaturated carbonyl compounds
01/31/2002US20020013381 Ionic compounds with delocalized anionic charge, and their use as ion conducting components or as catalysts
01/31/2002CA2417127A1 Compounds and inhibitors of phospholipases
01/31/2002CA2415738A1 Ruthenium complexes and their use in asymmetric hydrogenation
01/30/2002EP1176135A1 Process for producing optically active alcohol
01/30/2002EP1175426A1 Bidentate organophosphorous ligands and their use
01/30/2002EP1175379A1 Method for the asymmetric dihydroxylation of olefins, using osmium catalysts
01/30/2002CN1333087A Ferrocence ruthenium phosphide complex and method for preparing d-thilane by exocyclic double-bond hydrogenation of d-thiophene using said complex as catalyst
01/29/2002US6342629 Process for production of optically active n-protected-n-methyl-phenylalanine derivative
01/29/2002US6342592 Chiral compounds, their synthesis and use as a support
01/24/2002WO2002005953A2 Asymmetric synthetic methods based on phase transfer catalysis
01/24/2002WO2000053614A8 Method for producing glyco-conjugates of 20(s)-camptothecin
01/24/2002US20020010360 Process for the preparation of aminoalcohol derivatives and their further conversion to (1R, 4S)-4-((2-amino-6-chloro-5-formamido-4-pyrimidinyl)-amino)-2-cyclopentenyl-1- methanol
01/24/2002DE10033016A1 Verfahren zur Herstellung von 3,3-Diarylpropylaminen A process for the preparation of 3,3-Diarylpropylaminen
01/24/2002DE10029596A1 Polybetaaminosäuren als Epoxidierungs-Katalysatoren Polybetaaminosäuren as epoxidation catalysts
01/23/2002EP1173454A1 Method for producing glyco-conjugates of 20(s)-camptothecin
01/23/2002EP1173430A1 Enantiomers of mercapto lactones and processes for their synthesis
01/23/2002EP1173397A1 Stereospecific method for preparing 4-hydoxyalk-1-ene compounds
01/23/2002EP1173278A1 Metal catalysts and methods for making and using same
01/23/2002CN1332733A Stereoselective synthesis of oxazoline derivative
01/23/2002CN1332723A Arylalkanoyl derivatives, processes for their preparation, their use and pharmaceutical compositions containing them
01/23/2002CN1332716A Method for producing glyoxylic acid esters or hydrates thereof
01/22/2002US6340716 Electrodes, conductors, capacitors and batteries
01/17/2002WO2002004466A2 Catalyst for asymmetric (transfer) hydrogenation
01/17/2002WO2002004399A1 Method for producing 3,3-diarylpropylamines
01/17/2002WO2002004384A2 Process for preparing (-)menthol and similar compounds
01/17/2002US20020007090 Ring opening of (R)-propylene oxide with aryltrimethylsilyl ether in the presence of an optically active catalyst; reacting with an alcohol in the presence of an acid; reacting the regioisomeric mixture with a triarylmethyl halile;
01/17/2002US20020006960 Neuraminidase inhibitors
01/16/2002EP0801057B1 Process for producing optically active trans-vinyl sulfide alcohols
01/16/2002CN1331674A Sulfonamide hydroxamates
01/15/2002US6339159 Optically active α-aminonitrile and process for producing α-amino acid
01/10/2002WO2002002578A1 Ferrocenyl diphosphines and their use
01/10/2002WO2002002500A1 Preparation of (r)-2-alkyl-3-phenylpropionic acids
01/10/2002WO2001057232B1 Method for the enzymatic resolution of the racemates of aminomethyl-aryl-cyclohexanol derivatives
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