专利号:US-2012215002-A1 优先权日:2009-10-09 标 题:Synthesis of optically active intermediate for the preparation of montelukast 发明人:LEFORT LAURENT 权利人:LEFORT LAURENT 摘要:The present invention relates to the synthesis of optically active alcohols by means of enantioselective hydrogenation of ketones in biphasic systems. In particular the present invention relates to the synthesis of an optically active alcohol of general formula (1).
专利号:US-7091364-B2 优先权日:2002-09-24 标题:Process for the industrial synthesis of tetraesters of 5-[bis(carboxymethyl)amino]-3-carboxymethyl-4-cyano-2-thiophenecarboxylic acid, and application to the synthesis of bivalent salts of ranelic acid and their hydrates 发明人:VAYSSE-LUDOT LUCILE; LECOUVE JEAN-PIERRE; LANGLOIS PASCAL 权利人:SERVIER LAB 摘要:The process for the industrial synthesis of compounds of formula (I): n nwherein R and R′, which are the same or different, each represent linear or branched (C 1 –C 6 )alkyl.n n Application to the synthesis of bivalent salts of ranelic acid and more especially strontium ranelate and its hydrates.
专利号:US-9469614-B2 优先权日:2011-10-27 标 题:Synthesis of triazolopyrimidine compounds 发明人:ZUPANCIC BORUT; MARAS NENAD; STERK DAMJAN 权利人:LEK PHARMACEUTICALS 摘要:The present invention relates to the field of organic synthesis and describes the synthesis of specific triazolopyrimidine compounds and intermediates thereof as well as related derivatives.
专利号:US-4310465-A 优先权日:1977-05-17 标 题 :Synthesis of vitamin E and quinone intermediates 发明人:OLSON GARY L; SAUCY GABRIEL 权利人:HOFFMANN LA ROCHE 摘要:A synthesis of Vitamin E has the condensation of 2,4-pentanediene and 1,2-epoxy-2,6,10,14-tetramethylpentadecane including intermediates in this synthesis which uses base catalyzed condensations of aliphatic compounds to construct the Vitamin E molecule from aliphatic precursors.
专利号:US-4243598-A 优先权日:1977-05-17 标题:Synthesis of vitamin E 发明人:OLSON GARY L; SAUCY GABRIEL 权利人:HOFFMANN LA ROCHE 摘要:1 A synthesis of Vitamin E has the condensation of 2,4-pentanediene and 1,2-epoxy-2,6,10,14-tetramethylpentadecane including intermediates in this synthesis which uses base catalyzed condensations of aliphatic compounds to construct the Vitamin E molecule from aliphatic precursors.
专利号:EP-0439404-B1 优先权日:1990-01-25 标题 :Preparation of 2-(2'-thienyl) alkylamines and derivatives thereof and synthesis of 4,5,6,7- thieno [3,2-c] pyridine derivatives therefrom 发明人:KHATRI HIRALAL N; DEHOFF BRADLEY S 权利人:SANOFI SA 摘要:An improved process for the synthesis of 2-(2 min -thienyl)ethylamine from suitably functionalized derivatives of 2-(2 min -thienyl)ethanol employing ammonia gas in the presence of a metal salt or liquid ammonia and alkyl ketone as a solvent. The 2-(2 min -thienyl)ethylamine produced by this process is advantageously converted to the carbamic acid salt, which is suitably reconverted to 2-(2 min -thienyl)ethylamine, a useful intermediate in the synthesis of ticlopidine.