2-(N-甲基苄基氨基)乙基 3-氨基丁-2-烯酸酯 、
(E)-4-(3-Nitro-phenyl)-3-(7-oxo-6,8-dioxa-7λ5-phospha-spiro[3.5]non-7-yl)-but-3-en-2-one 以
异丙醇 为溶剂,
以44%的产率得到2,6-Dimethyl-4-(3-nitro-phenyl)-5-(7-oxo-6,8-dioxa-7λ
5-phospha-spiro[3.5]non-7-yl)-1,4-dihydro-pyridine-3-carboxylic acid 2-(benzyl-methyl-amino)-ethyl ester