| Patents for C07B 53 - Asymmetric syntheses (6,231) |
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| 03/25/2009 | CN101391970A Axial chirality bis-schiff base-containing ligand |
| 03/25/2009 | CN101391960A Method for preparing optically pure 2-hydroxyl-4-aryl-butyric ether |
| 03/25/2009 | CN101391953A Preparation of arthropodicidal oxadiazines |
| 03/24/2009 | US7507866 Decarboxylation/hydroxylation without the release of carbon monoxide by using a mixed-oxide, supported, hydrogenation catalyst based on rhenium oxide with an absense of ruthenium and, in some cases, platinum and palladium; autoclaving malic acid to obtain hydroxybutyrolactone and 1,2,4-butanetriol |
| 03/24/2009 | CA2355938C Method for producing l-phenylephrine hydrochloride |
| 03/18/2009 | EP2036881A1 Method for producing optically active 1-(fluoro-, trifluoromethyl- or trifluoromethoxy-substituted phenyl)alkylamine n-monoalkyl derivative |
| 03/18/2009 | CN101386592A Method for preparing pitavastatin calcium raw material medicine using asymmetric hydrogenation |
| 03/17/2009 | US7504532 Process for the preparation of 7-amino syn 3,5-dihydroxy heptanoic acid derivatives, intermediates thereof and methods for their preparation |
| 03/17/2009 | US7504353 Asymmetric hydrogenation of methyl (Z,E)-2-(2oxotetrahydro-1H-1-pyrrolyl)-2-butenoate with [Rh-(S,S-MeDUPHOS)(COD)BF4 ] immobilised on BETA zeolite; high activity; easy recovery and reuse, which is ecologically and economically advantageous |
| 03/12/2009 | WO2009031526A1 Process for production of optically active 3-quinuclidinol derivative |
| 03/12/2009 | WO2009030626A1 New phosphine-phosphite ligands |
| 03/11/2009 | CN101384532A Process for preparing optically active alcohols |
| 03/11/2009 | CN101381321A Synthetic method of chiral aminoacid |
| 03/11/2009 | CN101381314A Preparation method of (R)-(+)-N-propargyl-1-indan amines |
| 03/05/2009 | WO2009027729A1 Paracyclophane-based ligands, their preparation and use in catalysis |
| 03/05/2009 | DE102007041965A1 New N-arylbenzyl-N'-arylsulfonyl-1,2-diphenyl-1,2-ethanediamine ligands useful for preparing rhodium complex catalysts for asymmetric hydrogenation |
| 03/03/2009 | US7498458 Process for the preparation of prostaglandins and analogues thereof |
| 02/26/2009 | WO2009025169A1 Method for purification of optically active α-fluorocarboxylic acid esters |
| 02/25/2009 | CN101374792A Method for producing optically active alcohol compound |
| 02/25/2009 | CN101374791A Method for producing optically active alcohol compound |
| 02/25/2009 | CN101372484A Asymmetric synthesis method of chiral benzimidazole compound |
| 02/25/2009 | CN100463720C Phase-transferring catalyst containing dinaphthalene chiral double-spiral quaternary ammonium and its production method |
| 02/24/2009 | CA2343088C Transfer hydrogenation process |
| 02/18/2009 | EP1716091B1 Method for producing optically active alcohols or carboxylic acids |
| 02/18/2009 | EP1061062B1 Process for producing butanetriol derivatives |
| 02/18/2009 | CN101367780A Joint production method for (S)-3-hydroxyl-gamma-butyrolactone, (S)-3-hydroxyl tetrahydrofuran |
| 02/11/2009 | CN101362100A Chiral amine-(sulphur)urea double functional catalyst and synthesis method and use thereof |
| 02/10/2009 | US7488833 Process for the enantioselective hydrogenation of amino alcohols |
| 02/05/2009 | WO2009016879A1 Method of producing optically active n-(halopropyl)amino acid derivative |
| 02/04/2009 | CN100457723C Process for preparing 2-(substituted phenyl) - 2 - hydroxy-ethyl carbamates |
| 01/29/2009 | US20090030210 Process for Producing Optically Active 2-Alkylcysteine, Derivative Thereof, and Processes for Production |
| 01/29/2009 | DE102008033164A1 Verfahren zum Herstellen einer optisch aktiven Allylverbindung A method for producing an optically active allyl compound |
| 01/28/2009 | CN101353316A Method for isomerization of oxime ether |
| 01/28/2009 | CN101353309A Chiral compound based on 1,1í»-binaphthol-alkamine structure, synthetic method and use thereof |
| 01/27/2009 | CA2347689C Process for production of esters |
| 01/22/2009 | US20090023791 PH-dependent NMDA receptor antagonists |
| 01/20/2009 | CA2364944C C16 unsaturated fp-selective prostaglandins analogs |
| 01/15/2009 | WO2008002643A4 Fatty acid blends and uses therefor |
| 01/15/2009 | DE102004062640B4 Verfahren zur Synthese 2-arylsubstituierter beta-Aminosäurederivate Method for the synthesis of 2-aryl-substituted beta-amino acid derivatives |
| 01/14/2009 | CN101346468A Amine-containing lipids and uses thereof |
| 01/14/2009 | CN101346352A Asymmetric reduction method |
| 01/14/2009 | CN100451014C Process for making chiral 1,4-disubstituted piperazines |
| 01/13/2009 | CA2284162C Asymmetric hydrogenation of .beta.-keto esters |
| 01/08/2009 | WO2009005024A1 Method for producing optically active amine |
| 01/07/2009 | EP2011797A1 Process for production of camptothecin derivative |
| 01/07/2009 | EP2011781A1 Process for production of indene derivative, and intermediate for production of the derivative |
| 01/07/2009 | EP1483273B1 Ligands for asymmetric reactions |
| 01/07/2009 | CN101337955A Method for preparing high optical purity 3-substituted chiral phthalide compounds |
| 12/31/2008 | EP2008997A1 Process for production of ethylenediamine derivative having halogenated carbamate group and acyl group, and intermediated for production of the derivative |
| 12/31/2008 | CN101333230A Phosphoramidite type diphosphine ligand, preparation method and application thereof |
| 12/31/2008 | CN101333190A Asymmetric synthesis for chiral huperzine A |
| 12/30/2008 | US7470525 allowing cells of microorganism or treated products thereof having an activity of stereoselective hydrolysis of the amide bond of a 2-alkyl-L-cysteinamide or a salt thereof to act on a 2-alkylcysteinamide consisting of a mixture of D- and L-isomers or a salt thereof |
| 12/30/2008 | CA2412452C Process for the preparation of substituted octanoyl amides |
| 12/30/2008 | CA2186364C Substituted azetidinone compounds useful as hypocholesterolemic agents |
| 12/24/2008 | EP2004662A1 Ferrocenediphosphines |
| 12/24/2008 | EP1461306B1 Quaternary ammonium compounds and their use as antimuscarinic agents |
| 12/24/2008 | CN101328191A Nitrogen-containing ligand transient metal complex compound , synthetic method and use thereof |
| 12/24/2008 | CN101328190A Chiral N, P ligand, preparation and application thereof |
| 12/24/2008 | CN100445284C Process for prepn. of crystalline N-forminidoyl thienamycin monohydrate (imipenem monohydrate) |
| 12/23/2008 | CA2341860C Copper-catalyzed enantioselective allylic substitution reactions |
| 12/18/2008 | US20080312466 New sterospecifc chemical intermediates for statin drugs as astatin side chain building block to allow for a convergent ssynthesis; monoethyl ester of (3R)-acetoxyglutaaric acid chloride; efficiency; |
| 12/17/2008 | EP2003113A1 Process for production of carboxylic acid chloride compound |
| 12/17/2008 | CN101323630A Transient metal complex compound, synthetic method and use thereof |
| 12/17/2008 | CN101323609A Method for synthesizing high antipode content benzimidazole derivative by unsymmetrical oxidizing thioether into sulphoxide |
| 12/17/2008 | CN101323582A Chiral schiff base ligand and use thereof in sulfide unsymmetrical oxidation reaction |
| 12/11/2008 | US20080306259 Hydroxylation of beta-dicarbonyls with zirconium catalysts |
| 12/10/2008 | CN101318146A Application of dehydroabietylamine thiourea catalyst in synthesizing chiral compound with high-antipodism both-hand control |
| 12/09/2008 | US7462746 Amino polyols and amino sugars |
| 12/09/2008 | CA2249958C Binuclear iridium(i) phosphine complexes and their use as catalyst in the asymmetric hydroamination of olefins |
| 12/04/2008 | WO2008146826A1 Process for producing optically active styrene oxide compound |
| 12/03/2008 | EP1430031B1 Kinetic resolution of a intermediate useful in the production of benazepril and analogues thereof |
| 12/03/2008 | EP0984000B1 Process for producing amide derivatives and intermediate compounds |
| 12/03/2008 | CN101314554A Method for synthesizing cis-lycopene isomer from full trans lycopene with photochemistry isomerization reaction |
| 12/03/2008 | CN100439378C Phospinite-imidazolines and metal complexes thereof |
| 12/03/2008 | CN100439320C Intermediates for preparation of arthropodicidal oxadiazines |
| 11/27/2008 | WO2008002643A3 Fatty acid blends and uses therefor |
| 11/26/2008 | EP1993984A1 Asymmetric catalytic hydrogenation of prochiral ketones and aldehydes |
| 11/26/2008 | EP1506162B1 Synthesis of benzonitriles and benzimidates |
| 11/26/2008 | CN101312984A Diphosphine ligand and transition metal complex using same |
| 11/26/2008 | CN101312955A Process for producing optically active piperazine compound |
| 11/20/2008 | WO2008140074A1 Method for production of optically active carboxylic acid ester |
| 11/19/2008 | EP1991513A2 Organic salts and method for producing chiral organic compounds |
| 11/19/2008 | CN101306388A Palladium catalyst of axis chiral dinaphthalene frame phosphine-containing ligand, synthetic method and use thereof |
| 11/19/2008 | CN101306383A Chiral organic micromolecule catalyst loaded by heteropoly acid and preparation method and use thereof |
| 11/19/2008 | CN100434421C Substituted propane-1,3-diamine derivatives and the pharmaceutical use |
| 11/18/2008 | CA2393655C Method for the preparation of enantiomerically enriched compounds |
| 11/12/2008 | EP1990341A1 Triazolyl tropane derivatives as CCR5 modulators |
| 11/06/2008 | WO2008132962A1 Olefin matathesis catalyst and process for producing olefin reaction product through metathesis reaction with the same |
| 11/06/2008 | US20080275274 Process for the preparation of enantiomerically enriched compounds |
| 11/05/2008 | EP1988071A1 Method of producing optically active alcohol |
| 11/05/2008 | CN101300262A Bidentate C, P chiral phosphine ligands |
| 11/05/2008 | CN101298461A Use of oxazoline phosphine ligand in unsymmetrical catalytic hydrogenation of ketene compounds for synthesizing alpha-chiral carbon-containing ketone compound |
| 11/05/2008 | CN101298430A Synthetic method of (2S, 3S)-2-[(carbamoyloxy) methyl]-3-amido-4-oxoazetidinone-1-sulfonate |
| 11/05/2008 | CN101298056A Asymmetric catalytic reaction catalyst and preparation and use thereof |
| 11/04/2008 | US7446236 Catalytic hydrogenation of carbon-heteroatom double bonds |
| 10/30/2008 | WO2008129785A1 Asymmetric catalyst having artificial double-strand |
| 10/30/2008 | US20080269509 producing a ketooleanolic acid that can be an intermediate for synthesis of pharmaceuticals; minimize the environmental pollution |
| 10/30/2008 | US20080269496 Catalytic system of asymmetric reactions in aqueous media; react a silicon enolate and formaldehyde; catalyst obtained by mixing chiral ligands with scandium triflate |
| 10/29/2008 | EP1633762B1 Paracyclophanes |
| 10/28/2008 | US7442842 Method for asymmetric synthesis |