cyclopropylmethyl 2-(3-nitrobenzylidene)acetoacetate 、
2-[N-(4-chlorobenzyl)-N-methylamino]-ethyl acetoacetate 在
ammonium hydroxide 作用下,
以
乙醇 为溶剂,
以56.3%的产率得到3-[2-[N-(4-chlorobenzyl)-N-methylamino]ethyl] 5-cyclopropylmethyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate