专利号:US-7060838-B2 优先权日:2002-07-01 标 题 :Industrial process for the synthesis of isobutyl methyl 1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-3,5-pyridine dicarboxylate (nisoldipine) 发明人:FERRARI MASSIMO; GHEZZI MARCELLO; ALBERELLI MANUEL; AMBROSINI ALBERTO 权利人:ERREGIERRE SPA 摘要:Synthetic process of isobutyl methyl 1,4,-dihydro-2,6-dimethyl-4-(2-nitrophenyl)3,5-pyridine dicarboxylate (Nisoldipine) comprising on the reaction of isobutyl 2-(2-nitrobenzylidene)acetoacetate with methyl 3-aminocrotonate in an apolar solvent.
专利号:EP-1532110-B1 优先权日:2002-07-01 标题 :Industrial process for the synthesis of isobutyl methyl 1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-3,5-pyridine dicarboxylate (nisoldipine)
专利号:US-2005240022-A1 优先权日:2002-07-01 标 题 :Industrial process for the synthesis of isobutyl methyl 1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-3,5-pyridine dicarboxylate (nisoldipine)
专利号:EP-1532110-A1 优先权日:2002-07-01 标 题:Industrial process for the synthesis of isobutyl methyl 1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-3,5-pyridine dicarboxylate (nisoldipine)
专利号:ES-2311112-T3 优先权日:2002-07-01 标 题 :INDUSTRIAL PROCEDURE FOR THE SYNTHESIS OF ISOBUTILMETIL DICARBOXYLATE 1,4-DIHYDRO-2,6-DIMETHYL-4- (2-NITROPHENYL) -3,5-PYRIDINE (NISOLDIPINE).
专利号:WO-2004002958-A1 优先权日:2002-07-01 标题 :Industrial process for the synthesis of isobutyl methyl 1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)-3,5-pyridine dicarboxylate (nisoldipine)