A process for the preparation of 2-(N-benzyl-N-methylamino)-ethyl-methyl-1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridine dicarboxylate hydrochloride
申请人:——
公开号:EP0245680A3
公开(公告)日:1988-04-20
2-(N-benzyl-N-methylamino)-ethyl-methyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenil)-3,5-pyridine-dicarboxylate hydrochloride is prepared by reation of 3-nitro-benzaldehyde, methyl 3-aminocrotonate and 2-(N-methylamino)ethyl acetoacetate and subsequent reaction with a benzyl halide in inert solvents.
2-(N-苄基-N-甲基氨基)-乙基-甲基 1,4-二氢-2,6-二甲基-4-(3-硝基苯基)-3,5-吡啶二甲酸酯盐酸盐是由 3-硝基苯甲醛、3-氨基巴豆酸甲酯和 2-(N-甲基氨基)乙酰乙酸乙酯再反应,然后与卤化苄基在惰性溶剂中反应制备而成。