间硝基苯甲醛 、
2-[4-(pyridin-2-yl)-1-piperazinyl]ethyl acetoacetate 、
β-氨基巴豆酸甲酯 以
异丙醇 为溶剂,
以to give methyl 2-[4-(2-pyridyl)-1-piperazinyl]ethyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate as a light yellow powder, m.p. 53°-56° C. (sintering)的产率得到3-methyl 5-(2-[4-(pyridin-2-yl)-1-piperazinyl]-ethyl} (+)-1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)-pyridine-3,5-dicarboxylate