methyl 5-{[4-(p-toluenesulfonyl)but-3-en-1-yl]-(6-vinylbenzo[1,3]dioxole-5-carbonyl)amino}-1,3,4-oxadiazole-2-carboxylate 以
邻二氯苯 为溶剂,
反应 1.0h,
以72%的产率得到methyl 2-hydroxy-7-oxo-3-(p-toluenesulfonyl)-1,2,3a,4,5,7-hexahydro-3H-[1,3]dioxolo[4,5-j]pyrrolo[3,2,1-de]phenanthridine-2-carboxylate