2-(N-甲基苄基氨基)乙基 3-氨基丁-2-烯酸酯 、
(E)-3-(5-Methyl-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52%的产率得到2,6-Dimethyl-5-(5-methyl-2-oxo-2λ
5-[1,3,2]dioxaphosphinan-2-yl)-4-(3-nitro-phenyl)-1,4-dihydro-pyridine-3-carboxylic acid 2-(benzyl-methyl-amino)-ethyl ester