2-(N-甲基苄基氨基)乙基 3-氨基丁-2-烯酸酯 、
(E)-3-(5-Ethyl-2-oxo-2λ5-[1,3,2]dioxaphosphinan-2-yl)-4-(3-nitro-phenyl)-but-3-en-2-one 以
异丙醇 为溶剂,
以29%的产率得到2-(N-Benzyl-N-methylamino)-ethyl 5-(5-ethyl-2-oxo-1,3,2-dioxaphosphorinan-2-yl)-2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carboxylate