| Patents for C07B 53 - Asymmetric syntheses (6,231) |
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| 09/23/2003 | US6624201 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 and a process for the preparation of these compounds as well as medicaments containing 1 or more of these compounds and their use |
| 09/18/2003 | WO2003076451A1 Ferrocenyl ligands and the use thereof in catalysis |
| 09/18/2003 | WO2003076072A1 Practical chiral zirconium catalyst |
| 09/18/2003 | WO2003053176A3 Method and compositions for imparting cooling effect to tobacco products |
| 09/18/2003 | WO2003049681A3 Synthesis of 4,5-dihydro-pyrazolo [3,4-c] pyrid-2-ones |
| 09/18/2003 | WO2002102764A3 Method for producing chiral amino acid derivatives |
| 09/17/2003 | EP1021426B1 Catalytic asymmetric epoxidation |
| 09/17/2003 | CN1442403A Chiral alkamine ligand and its application in asymmetrical addition of terminal alkyne para imine |
| 09/17/2003 | CN1442219A Oscillating device |
| 09/16/2003 | US6620977 Reacting 1,2,4-butanetriol in multiple steps with specified reagents using selective protection and deprotection of hydroxyl groups |
| 09/12/2003 | WO2003074717A1 Process for preparation of optically active allenes |
| 09/12/2003 | WO2003074487A1 Process for production of optically active compounds |
| 09/12/2003 | WO2003074169A2 Metalorganic catalysts for chemo-, regio- and stereoselective reactions, and corresponding precursors |
| 09/12/2003 | CA2478485A1 Method for producing optically active compound |
| 09/12/2003 | CA2478482A1 Metalorganic catalysts for chemo-, regio- and stereoselective reactions, and corresponding precursors |
| 09/11/2003 | US20030171610 Catalyst asymmetric desymmetrization of prochiral compounds |
| 09/11/2003 | US20030171608 Transition metal-catalyzed hydrogenation, hydroborination and hydrocyanation of prochiral olefins, ketones and imines. |
| 09/11/2003 | US20030171603 Process for preparing optically active epoxides |
| 09/11/2003 | US20030171592 A nitro ketone or a cyano ketone is reacted with a hydrogen-donor in the presence of a transition metal compound catalyst having an optically active nitrogen asymmetric ligand to form the alcohol and reducing to the amine |
| 09/11/2003 | US20030171213 Catalyst system and a process for the preparation of a nonracemic chiral alcohol by hydrogenation of a ketone using the catalyst system, wherein the catalyst system comprises ruthenium, a nonracemic chiral diphosphine ligand, an |
| 09/10/2003 | EP1341828A1 Optically active polymer with epoxide functions, method for preparing same, and use thereof |
| 09/10/2003 | EP1341799A1 P-chirale bisphospholane ligands, their transition metal complexes |
| 09/10/2003 | EP1341798A1 Chiral diphosphines and their metal complexes |
| 09/10/2003 | EP1341797A1 Ortho substituted chiral phosphines and phosphinites and their use in asymmetric catayltic reactions |
| 09/10/2003 | EP1341785A2 HYDROLYSIS OF R(R*,R*)]-2-(4-FLUOROPHENYL)-$g(b),$g(d) -DIHYDROXY-5-(1-METHYLETHYL)-3-PHENYL-4- (PHENYLAMINO)CARBONYL]-1H-PYRROLE-1-HEPTANOIC ACID ESTERS WITH CALCIUM HYDROXIDE |
| 09/10/2003 | EP1341759A2 3-substituted oxindole beta 3 agonists |
| 09/10/2003 | EP1147075B1 Method for producing l-phenylephrine hydrochloride |
| 09/10/2003 | EP1140818B1 Amidomalonamides and their use as inhibitors of matrix metalloproteinase |
| 09/10/2003 | EP1127871B1 New esters derived from substituted phenyl-cyclohexyl compounds |
| 09/10/2003 | EP0977742B1 The preparation of enantiomerically enriched oxazolones and alpha, alpha-disubstituted amino acids |
| 09/10/2003 | EP0809647B1 Chiral organometallic compounds |
| 09/10/2003 | CN1441771A Method for producing 3,3-diarylpropylamines |
| 09/09/2003 | US6617480 Molecular weight-enlarged ligands for asymmetric, homogeneously soluble hydrogenation catalysts, process for the production thereof and use |
| 09/09/2003 | US6617475 Preparation of optically active α-hydroxyethers |
| 09/04/2003 | WO2003072576A2 Oxazolidinone derivatives, processes for their preparation, and pharmaceutical compositions containing them |
| 09/04/2003 | WO2003072559A1 Method for producing 3-amidinophenylalanine derivatives |
| 09/04/2003 | US20030166979 Chemical methods |
| 09/04/2003 | US20030166978 Novel ruthenium complexes and process for preparing alcoholic compounds using these |
| 09/04/2003 | US20030166963 Using tertiary amine catalyst |
| 09/04/2003 | US20030166654 Azabicyclic carbamates and their use as alpha-7 nicotinic acetylcholine receptor agonists |
| 09/04/2003 | CA2477379A1 Oxazolidinone derivatives, processes for their preparation, and pharmaceutical compositions containing them |
| 09/03/2003 | EP1339655A1 Transfer hydrogenation process and catalyst |
| 09/03/2003 | CN1440416A Catalyst for asymmetric (transfer) hydrogenation |
| 09/03/2003 | CN1440379A Preparation of (R)-2-alkyl-3-phenylpropionic acids |
| 09/02/2003 | US6613936 Herpes and retroviral infections; diester derivatives of H2G bearing specific combinations of an amino acid ester and a fatty acid ester, improved oral bioavailability; 9-(2-(butyryloxymethyl)-4-(L-isoleucyloxy)butyl)guanine |
| 09/02/2003 | US6613922 Such as (S)-ps-ortho-Bis(bis(dimethylamino)phosphino)-(2.2)-p-cyclophane; useful as chemical intermediates for transition metal-catalysed asymmetric hydrogenation reactions |
| 08/28/2003 | WO2003070720A1 Preparation of n-methyl-3-hydroxy- 3-(2-thienyl)propylamine via novel thiophene derivatives containing carbamate groups as intermediates |
| 08/28/2003 | WO2003070701A2 Syntheses of quinazolinones |
| 08/28/2003 | WO2003070676A1 Process for producing optically active 3-halo-1,2-propanediol derivative |
| 08/28/2003 | US20030163003 To form transition metal complexes which are used in such as asymmetric hydrogenation of imines, asymmetric hydride transfer reactions, hydrosilylation, hydroboration, hydrovinylation hydroformylation, allylic alkylation, etc. |
| 08/28/2003 | US20030162994 For use in asymmetrical catalysis |
| 08/28/2003 | US20030162990 Preparation of nitrogen mustard derivatives |
| 08/28/2003 | US20030159948 Ion selectivity electrode |
| 08/28/2003 | CA2477082A1 Preparation of n-methyl-3-hydroxy- 3-(2-thienyl)propylamine via novel thiophene derivatives containing carbamate groups as intermediates |
| 08/28/2003 | CA2475879A1 Synthesis of quinazolinones |
| 08/27/2003 | EP1257360A4 Chiral ferrocene phosphines and their use in asymmetric catalytic reactions |
| 08/27/2003 | CN1438985A Cyclic ketones, their preparation and their use in the synthesis of amino acids |
| 08/27/2003 | CN1438981A Process for preparation of R-1-(aryloxy) propan-2-oL |
| 08/27/2003 | CN1119319C Asymmetric synthesis of (-) 6-chloro-4-cyclopropyl-ethynyl-4-trifluoromethyl-1, 4dihydro-2H-3, 1-benzoxazin-2-one |
| 08/26/2003 | US6610894 Stabilization of borane-tetrahydrofuran complex by a borohydride in reducing ketones, imines or hydroximines using a chiral catalyst; maintaining a low concentration of borohydride by adding a Lewis acid |
| 08/26/2003 | US6610889 Using organometallic complex catalyst |
| 08/26/2003 | US6610875 Method for preparing chiral diphosphines |
| 08/26/2003 | US6610874 Esterification of an amine protected aminoalcohol; nucleo-philic substitution with cyano group |
| 08/26/2003 | US6610871 Reacting with an organozinc compound; chemoselective for Sn2' substitution and/or stereoselective. |
| 08/21/2003 | US20030158176 Quaternary ammonium compounds |
| 08/20/2003 | EP1335911A1 Synthesis of r(+)alpha-lipoic acid |
| 08/20/2003 | EP1163207B1 An improved process for the preparation of non-hygroscopic salts of l(-)-carnitine |
| 08/20/2003 | CN1437599A Tryasolyl tropane derivatives for therapy |
| 08/19/2003 | US6608214 Process for producing optically active γ-butyrolactone |
| 08/14/2003 | WO2003066578A1 PROCESS FOR PRODUCING ß-HYDROXYAMINO ACID DERIVATIVE AND INTERMEDIATE THEREFOR |
| 08/14/2003 | WO2002092562A3 Enantioselective reactions using two-component chiral phase transfer catalysts in multiphasic systems |
| 08/14/2003 | US20030153760 Treating 1-(3,5- bis(trifluoromethyl)phenyl)ethan-1-one with bis((pentamethylcyclopentadienyl)rhodium chloride) and (S,R)-cis-1-amino-2-hydroxy-indane in the presence of isopropanol |
| 08/14/2003 | US20030153523 Screening library of test compounds, each of which is attached to a solid support, with a dye-labeled RNA molecule to form a dye-labeled target RNA:support-attached test compound complex |
| 08/14/2003 | US20030153031 Esterification of racemic mixture in solvent |
| 08/13/2003 | EP1334105A1 Process for the preparation of crystalline n-formimidoyl thienamycin monohydrate (imipenem monohydrate) |
| 08/13/2003 | CN1436098A Chiral salen catalysts, and process for preparing chiral compounds from racemic epoxides for using them |
| 08/12/2003 | US6605745 Synthesis of P-chiral bisphospholane ligands and their transition metal complexes for use as asymmetric hydrogenation catalysts |
| 08/12/2003 | US6605741 Catalytic reacting acetylene with epoxide |
| 08/12/2003 | US6605723 Process for the preparation of ethanesul fonyl-piperidine derivatives |
| 08/07/2003 | WO2003064392A1 Process for the manufacture of hmg-coa reductase inhibitors |
| 08/07/2003 | WO2003064382A2 Process for the manufacture of organic compounds |
| 08/07/2003 | WO2003063852A1 Therapeutic agent for urinary incontinence |
| 08/07/2003 | US20030149281 Protected 3,-5-dihydroxy-2,2-dimethyl-valeronitriles for the synthesis of epothilones and epothilone derivatives and process for the production |
| 08/07/2003 | US20030149270 Processes for the preparation of 3-aminocarboxylic acids and their esters |
| 08/07/2003 | US20030149264 Chiral ionic liquids |
| 08/07/2003 | CA2472340A1 Process for the manufacture of organic compounds |
| 08/06/2003 | EP1049537B1 Catalytic compositions and methods for asymmetric allylic alkylation |
| 08/05/2003 | US6603032 1,2-bis(methyl(1,1,3,3-tetramethylbutyl)-phosphino)ethane, process the preparation thereof, transition metal complexes containing the same as a ligand and uses thereof |
| 08/05/2003 | US6602817 Combination approach to chiral reagents or catalysts having amine or amino alcohol ligands |
| 07/31/2003 | WO2003062181A1 PROCESS FOR THE PREPARATION OF NONRACEMIC SYN-1-(4-HYDROXY-PHENYL)-2-(4-HYDROXY-4-PHENYL.PIPERIDIN-1Yl)-1-PROPANOL COMPOUNDS |
| 07/31/2003 | WO2003062180A1 Process for the preparation of nonracemic syn-1-(4-hydroxy-phenyl)-2-(4-hydroxy-4-phenyl-piperidin-1-yl)-1-propanol compounds |
| 07/31/2003 | WO2003061826A1 Process for preparing nonracemic chiral alcohols |
| 07/31/2003 | WO2003061825A1 Process for preparing nonracemic chiral alcohols |
| 07/31/2003 | WO2003061824A1 Process for preparing nonracemic chiral alcohols |
| 07/31/2003 | WO2003061660A1 Melanocortin receptor agonists |
| 07/31/2003 | US20030144531 Preparing chirally pure S-enantiomers of alpha -amino acids comprising the steps of: a) preparing an organometallic reagent from an alkyl halide of the formula (R) 2CH(CH2)nCH2X; b) adding the organometallic reagent to carbon dioxide to form |
| 07/31/2003 | US20030144521 Hydrogenation of a corresponding nonracemic 1-(4-benzoxy phenyl)-2-(4-hydroxy-4- phenyl-piperidin-1-yl)-1-propanone using a catalyst system comprising ruthenium, a nonracemic diphosphine ligand, a bidentate amine ligand selected from |
| 07/31/2003 | US20030144138 Having chemical selectivity, enantioselectivity, catalytic activity; for use as a catalyst for asymmetric syntheses, especially asymmetric hydrogenation |
| 07/31/2003 | US20030144137 For use as catalysts in asymmetric reactions, such as, hydrogenation, hydride transfer, allylic alkylation, hydrosilylation, hydroboration, hydrovinylation, hydroformylation, olefin metathesis, hydrocarboxylation |
| 07/31/2003 | CA2473036A1 Melanocortin receptor agonists |