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-5998633-A 优先权日:1996-07-29 标 题:Process for the synthesis of protected esters of (S)-3,4-dihydroxybutyric acid 发明人:JACKS THOMAS E; BUTLER DONALD E 权利人:WARNER LAMBERT CO 摘要:The invention is an improved process for the preparation of a compound of formula I wherein R and R 1 are each independently alkyl of from 1 to 3 carbon atoms; and R 2 is alkyl of from 1 to 8 carbon atoms. ##STR1##
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.
专利号:US-5103024-A 优先权日:1990-10-17 标题:Process for the synthesis of (4r-cis)-1,1-dimethylethyl 6-cyanomethyl-2,2-dimethyl-1,3-dioxane-4-acetate 发明人:MILLAR ALLAN; 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.
专利号:US-5280126-A 优先权日:1988-02-22 标题 :Process for trans-6-[2-(substituted-pyrrol-1-yl)alkyl]pyran-2-one inhibitors of cholesterol synthesis 发明人:BUTLER DONALD E; DEERING CARL F; MILLAR ALAN; NANNINGA THOMAS N; ROTH BRUCE D 权利人:WARNER LAMBERT CO 摘要:An improved process for the preparation of trans-6-[2-(substituted-pyrrol-1-yl)alkyl]pyran-2-ones by a novel synthesis is described where 1,6-heptadien-4-ol is converted in eight operations to the desired products, as well as an improved process for the preparation of (2R-trans) and trans-(±)-5-(4-fluorophenyl)-2-(1-methylethyl)-N,4-diphenyl-1-[2-(tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl)ethyl]-1H-pyrrole-3-carboxamide by a novel synthesis where 4-methyl-3-oxo-N-phenylpentanamide is converted in eight operations to the desired product or alternatively 4-fluoro-α-[2-methyl-1-oxopropyl]-Y-oxo-N,β-diphenylbenzenebutaneamide is converted in one step to the desired product, and additionally, a process for preparing (2R-trans)-5-(4-fluorophenyl)-2-(1-methylethyl)-N,4-diphenyl-1-[2-(tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl)ethyl]-1H-pyrrole-3-carboxamide from (R)-4-cyano-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]butanoic acid, as well as other valuable intermediates used in the processes.