| Patents for C07B 53 - Asymmetric syntheses (6,231) |
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| 05/06/2014 | CA2307163C Process for stereoselective synthesis of prostacyclin derivatives |
| 04/30/2014 | EP2725012A1 1-amino-2-vinyl cyclopropane carboxylic acid amide, salt of same, and method for producing same |
| 04/30/2014 | EP2723701A1 Processes for preparing phosphorus-containing alpha- and beta-amino acids and derivatives thereof |
| 04/30/2014 | CN103755568A Method for stereoselective synthesis of IeodomycinA and B |
| 04/23/2014 | CN103748059A Process for the preparation of protease inhibitors |
| 04/23/2014 | CN102030690B Di-sulfoxide ligands with axial chirality and synthesis method thereof |
| 04/16/2014 | CN102531815B Method for asymmetrically catalyzing epoxidation reaction of alpha, beta-unsaturated carbonyl compounds |
| 04/09/2014 | CN103706397A Polymetallic oxygen cluster immobilized chiral catalyst, preparation method thereof and application thereof to chiral resolution and catalytic oxidation |
| 03/27/2014 | WO2014046172A1 Method for producing isoxazolidine compounds |
| 03/26/2014 | CN103665038A Carbon-phosphorus chiral dialkyl oxygen phosphine and synthesis method thereof |
| 03/26/2014 | CN103664609A Method for preparing (R)-2-hydroxyl-2-trifluoromethyl-4-methyl-4-ethyl pentenoate under asymmetric catalysis at low temperature |
| 03/26/2014 | CN102432468B Asymmetric synthetic method of tanshinol borneol ester |
| 03/26/2014 | CN101074207B Soluble chiral diamino derivative, its production and use |
| 03/25/2014 | CA2466449C P-chiral phospholanes and phosphocyclic compounds and their use in asymmetric catalytic reactions |
| 03/19/2014 | EP2707347A1 Processes and intermediates |
| 03/19/2014 | EP2707346A1 Process for the preparation of protease inhibitors |
| 03/18/2014 | US8674135 Functionalized ionic liquids, and methods of use thereof |
| 03/13/2014 | WO2014038666A1 Process for producing optically active amine |
| 03/13/2014 | WO2014038665A1 Method for producing optically active 2,3-dihydrofarnesal |
| 03/12/2014 | EP2706063A1 Ruthenium-diamine complex and method for producing optically active compound |
| 03/12/2014 | CN102958910B Beta-aminocarbonyl compound production method |
| 03/05/2014 | EP2703381A1 Method for producing five-membered ring-containing compound |
| 02/26/2014 | CN103601856A Supported chiral catalyst polymer microspheres, and preparation method and application thereof |
| 02/25/2014 | CA2583322C Processes for preparing optically active (s or r)-b-amino acid and optically active (r or s)-b-amino acid ester, and b-amino acid 2-alkoxyethyl ester and optically active (s or r)-b-amino acid 2-alkoxyethyl ester |
| 02/20/2014 | WO2014027658A1 INTERMEDIATE FOR SYNTHESIS OF 1-(2-DEOXY-2-FLUORO-4-THIO-β-D-ARABINOFURANOSYL) CYTOSINE, INTERMEDIATE FOR SYNTHESIS OF THIONUCLEOSIDE, AND METHODS FOR PRODUCING THESE INTERMEDIATES |
| 02/20/2014 | WO2013072830A9 A single step enantioselective process for the preparation of 3-substituted chiral phthalides |
| 02/19/2014 | CN103588659A Preparation of chiral amides and amines |
| 02/13/2014 | WO2014024898A1 Method for producing hexahydrofurofuranol derivative |
| 02/13/2014 | WO2014024753A1 β-SUBSTITUTED-β-TRIFLUOROMETHYL-α,β-EPOXYKETONE COMPOUND HAVING ASYMMETRIC QUATERNARY CARBON, AND METHOD FOR PRODUCING SAME |
| 02/12/2014 | EP2695887A1 Novel ruthenium complex and process for producing optically active alcohol compound using same as catalyst |
| 02/12/2014 | CN103570484A Asymmetric hydrogenation synthetic method of chiral aromatic amine compound with high steric hindrance |
| 02/05/2014 | CN103553941A Method for preparing levalbuterol |
| 02/04/2014 | US8642761 Method for producing 3-amidinophenylalanine derivatives |
| 01/29/2014 | CN103547558A Method for producing five-membered ring-containing compound |
| 01/29/2014 | CN102304007B Asymmetric catalytic hydrogenation reaction method of intra-annular N-alkylimine |
| 01/29/2014 | CN102030780B Chiral spiro-phosphate and preparation method and application thereof |
| 01/23/2014 | WO2014012371A1 Compounds of chiral aromatic spiroketal diphosphine ligands, preparation methods and uses thereof |
| 01/22/2014 | CN103524414A Bridge ring derivative with aza-decadiene structure segment and synthesis method thereof |
| 01/22/2014 | CN103524359A C2 symmetric optically-active amino diol with three substituents having large steric hindrances, preparation method thereof and applications thereof |
| 01/16/2014 | WO2014010250A1 Asymmetric auxiliary group |
| 01/15/2014 | EP2684866A1 Compound and method for producing same, as well as method for producing oseltamivir phosphate |
| 01/15/2014 | CN101838258B New preparation method of asymmetric synthetic dibenzo dioxy octanone |
| 01/08/2014 | CN102757364B Preparation and synthetic method of chiral nitrogenous compound |
| 01/08/2014 | CN101982451B Asymmetric synthesis of chiral muskone and other 3-methyl cyclic ketone |
| 01/03/2014 | WO2014000455A1 Chiral five-membered bicyclic guanidine compound, and preparation method and application thereof |
| 12/25/2013 | EP2004662B1 Ferrocenediphosphines |
| 12/25/2013 | CN103467641A Linear polystyrene supported (S)-5-(4-benzyloxy)-3-phenyl-1-propionyl hydantoin, and preparation method and application thereof |
| 12/25/2013 | CN103467351A Calix [4] proline derivative and green catalytic asymmetric Aldol reaction method thereof |
| 12/25/2013 | CN103467227A Method for preparing chiral piperidone |
| 12/18/2013 | EP2674419A1 Quaternary ammonium salt |
| 12/18/2013 | CN103450073A R-diphenyl prolinol chiral organic small molecule compound with cyclopropane structure and synthesis method of R-diphenyl prolinol chiral organic small molecule compound |
| 12/18/2013 | CN103450072A Pyrrole derivative of R-proline with cyclopropane structure and preparation method of pyrrole derivative |
| 12/18/2013 | CN103447085A Heterogeneous acid-base bifunctional catalyst for catalyzing asymmetric one-pot reaction, and preparation method thereof |
| 12/18/2013 | CN102580773B Preparation method of load type chiral ketone catalyst and application thereof |
| 12/12/2013 | WO2013183642A1 Axially chiral pyridine derivative or salt thereof, and method for producing same and chiral catalyst comprising same |
| 12/11/2013 | EP2670722A1 Chiral 1-(4-methylphenylmethyl)-5-oxo-{n-[(3-t-butoxycarbonyl-aminomethyl)]-piperidin-1-yl}-pyrrolidine-2-carboxamides as inhibitors of collagen induced platelet activation and adhesion |
| 12/11/2013 | CN103443111A Novel ruthenium complex and process for producing optically active alcohol compound using same as catalyst |
| 12/11/2013 | CN103435536A Pyrrole derivative of S-proline having cyclopropane structure and preparation method of pyrrole derivative |
| 12/11/2013 | CN103435535A Preparation method of R-proline having cyclopropane structure |
| 12/11/2013 | CN103435534A Preparation method of S-proline having cyclopropane structure |
| 12/11/2013 | CN102249833B Method for preparing chiral gamma-amino acid and derivatives thereof |
| 12/11/2013 | CN101983186B Ruthenium compound and method for producing optically active aminoalcohol compound |
| 12/04/2013 | CN103429580A Method for producing optically active fluorinated oxetane |
| 12/04/2013 | CN102516202B N-fluoro-1, 1'-binaphthyl-2, 2'-sulfimide and preparation method thereof |
| 11/20/2013 | EP2364987B1 Axially asymmetric phosphorus compound and production method thereof |
| 11/20/2013 | CN103402973A Compound and method for producing same, as well as method for producing oseltamivir phosphate |
| 11/20/2013 | CN103396429A Silicon chiral center silane derivative |
| 11/14/2013 | WO2013168780A1 Method for producing optically active 2-vinylcyclopropane-1,1-dicarboxylic acid ester |
| 11/13/2013 | CN103387533A Method for synthesis of chiral piperidine derivative through iridium-catalyzed asymmetric hydrogenation of pyridine |
| 11/06/2013 | CN102643246B Method for synthesizing chiral 2-carbonyl oxazoline |
| 11/06/2013 | CN102260131B Method of enantioselective addition to ketene |
| 11/06/2013 | CN101962353B Preparation method of (R) or (S)-2-aminomethyl tetrahydropyrrole |
| 11/05/2013 | CA2642388C Process for preparing optically active alcohols |
| 11/05/2013 | CA2481202C Functionalized ionic liquids, and methods of use thereof |
| 10/31/2013 | WO2013126495A3 Asymmetric synthetic processes for the preparation of aminosulfone compounds |
| 10/30/2013 | EP2657222A1 Beta-aminocarbonyl compound production method |
| 10/30/2013 | CN103373948A Preparation method for natural product (-)-kainic acid |
| 10/30/2013 | CN103372461A Chiral emulsion catalyst as well as preparation method and application thereof |
| 10/30/2013 | CN102161608B Method for improving stereoselectivity of intramolecular photocyclization reaction |
| 10/30/2013 | CN102153483B Axial chirality vicinal diamine compound and preparation method thereof |
| 10/29/2013 | CA2621640C Optically active diamine derivative and process for producing the same |
| 10/23/2013 | CN103360341A Tertiary leucine derived chiral amine compound as well as preparation method and application thereof |
| 10/23/2013 | CN102553646B Chiral diamine diphosphine metal compound catalysts as well as preparation method and application thereof |
| 10/16/2013 | CN101146812B Optically active ammonium salt compound, production intermediate thereof and method for producing same |
| 10/16/2013 | CN101098878B Monophosphine compound, transition metal complex thereof and method for producing optically active compound by using the same complex as asymmetric catalyst |
| 10/15/2013 | CA2731273C Processes and intermediates for preparing retroviral protease inhibitors |
| 10/09/2013 | EP2647635A1 Pyrrole derivative and process for production thereof |
| 10/09/2013 | EP2647616A1 Method for manufacturing optically active menthol |
| 10/09/2013 | EP2646150A1 Catalyst for asymmetric hydrogenation and method for manufacturing optically active carbonyl compound using the same |
| 10/09/2013 | CN103347861A 季铵盐 Quaternary |
| 10/03/2013 | WO2013146987A1 Rhodium catalyst and method for producing amine compound |
| 09/25/2013 | EP2641910A1 Chiral spiro-pyridylamidophosphine ligand compound, synthesis method therefor and application thereof |
| 09/25/2013 | CN103328469A Pyrrole derivative and process for production thereof |
| 09/25/2013 | CN102040625B Chiral spiro pyridylamidophosphine ligand compounds and synthesis method and application thereof |
| 09/19/2013 | WO2013137330A1 Method for producing optically active 2-vinylcyclopropane-1,1-dicarboxylic acid ester |
| 09/18/2013 | EP2639216A1 Halogenated indenones and method for producing optically active indanones or optically active indanols by using same |
| 09/18/2013 | EP2639212A1 Enantioselective organic anhydride reactions |
| 09/18/2013 | CN103304599A Diphenylethanediamine-derived phosphamide chiral compound as well as preparation and application thereof |
| 09/18/2013 | CN101497573B Enantioselectivity method |
| 09/12/2013 | WO2013133343A1 Fluorine-containing α,β-unsaturated aldehyde, method for producing same, optically active fluorine-containing compound using fluorine-containing α,β-unsaturated aldehyde, and method for producing same |