(E)-4-(3-Nitro-phenyl)-3-(4,4,5,5-tetramethyl-2-oxo-2λ
5-[1,3,2]dioxaphospholan-2-yl)-but-3-en-2-one 、
3-氨基巴豆酸甲酯 以
异丙醇 为溶剂,
反应 3.0h,
以31%的产率得到methyl 2,6-dimethyl-5-(4,4,5,5-tetramethyl-2-oxo-1,3,2-dioxaphosphorinan-2-yl)-4-(3-nitrophenyl)-1,4-dihydropyridine-3-carboxylate