专利号:US-2007015260-A1 优先权日:2002-03-14 标 题:Synthesis of synthons for the manufacture of bioactive compounds 发明人:WONG CHI-HUEY; LIU JUNJIE; DESANTIS GRACE; BURK MARK 权利人:SCRIPPS RESEARCH INST 摘要:The present invention is based on the discovery that 2-deoxyribose-5-phosphate aldolase (DERA, EC 4.1.2.4) and variants thereof can be used to catalyze sequential asymmetric aldol reactions between a wide variety of donor and acceptor aldehydes. The reaction products typically contain at least two new stereogenic centers and can be produced in enantiomerically pure form. As such, DERA catalyzed asymmetric aldol chemistry can be exploited to produce synthons for the synthesis of a variety of bioactive molecules.
专利号:US-10647655-B2 优先权日:2016-09-02 标题:Method for the synthesis of permethrin 发明人:PULLAGURLA MANIK REDDY; NANDA KUMAR MECHERIL VALSAN; VELIGETLA MADHUSUDHANA RAO; RANGISETTY JAGADEESH BABU 权利人:BIOPHORE INDIA PHARMACEUTICALS PVT LTD 摘要:An improved method for the synthesis of substantially pure Permethrin having purity greater than 99.5% by Gas Chromatography provided. The embodiments also relates to a purification process of Permethrin by recrystallization from methanol-water mixture.
专利号:US-7399773-B2 优先权日:2001-01-09 标 题 :Process for the synthesis of 5-(4-fluorophenyl)-1-[2-((2R,4R)-4-hydroxy-6-oxo-tetrahydro-pyran-2-yl)-ethyl]-2-isopropyl-4-phenyl-1H-pyrrole-3-carboxylic acid and phenylamide 发明人:NELSON JADE DOUGLAS; PAMMENT MICHAEL GERARD 权利人:WARNER LAMBERT CO 摘要:An improved process for the preparation of 5-(4-fluorophenyl)-1-[2-((2R,4R)-4-hydroxy-6-oxo-tetrahydro-pyran-2-yl)-ethyl]-2-isopropyl-4-phenyl-1H-pyrrole-3-carboxylic acid phenylamide by a novel synthesis is described where methyl cyanoacetate is converted in eight operations or fewer to the desired product, as well as other valuable intermediates used in the process.
专利号:US-7232915-B2 优先权日:1997-12-19 标题:Process for the synthesis of 1,3-diols 发明人:BOSCH ROBERT LEE; MCCABE RICHARD JOSEPH; NANNINGA THOMAS NORMAN; STAHL ROBERT JOSEPH 权利人:WARNER LAMBERT CO 摘要:An improved process for the preparation of cis-1,3-diols is described where a beta hydroxy ketone is treated with a trialkylborane or dialkylalkoxyborane or a mixture of a trialkylborane and a dialkylalkoxyborane followed by recovery and reuse of the alkylborane species to convert additional beta hydroxy ketone to the cis-1,3-diol.
专利号:US-5155251-A 优先权日:1991-10-11 标题:Process for the synthesis of (5R)-1,1-dimethylethyl-6-cyano-5-hydroxy-3-oxo-hexanoate 发明人:BUTLER DONALD E; LE TUNG V; MILLAR ALAN; NANNINGA THOMAS N 权利人:WARNER LAMBERT CO 摘要:An improved process for the preparation of (5R)-1,1-dimethylethyl-6-cyano-5-hydroxy-3-oxo-hexanoate is described where a halo hydroxyester or other activated dihydroxyester is converted in two steps to the desired product.
专利号:US-5248793-A 优先权日:1990-10-17 标 题:Process for the synthesis of (4R-cis)-1,1-dimethylethyl 6-iodomethyl or 6-(phenyl-substituted)sulfonyloxymethyl-2,2-dimethyl-1,3-dioxane-4-acetate 发明人:MILLAR ALAN; BUTLER DONALD E 权利人:WARNER LAMBERT CO 摘要:An improved process for the preparation of (4R-cis)-1,1-dimethylethyl 6-cyanomethyl-2,2-dimethyl-1,3-dioxane-4-acetate is described where a hydroxy ester derivative is converted in two steps to the desired product, as well as valuable intermediates used in the process.