1-甲基-1H-吲哚-2-乙酸甲酯 、
1-<2-<(2,4-dinitrophenyl)methylhydrazono>ethyl>-3-<(E)-2-(methoxycarbonyl)vinyl>pyridinium chloride 在
lithium diisopropyl amide 作用下,
生成
methyl 2-<2-<(2,4-dinitrophenyl)methylhydrazono>ethyl>-6-(methoxycarbonyl)-7-methyl-1,2,5,6-tetrahydro-1,5-methanoazocino<4,3-b>indole-4-(E)-acrylate 、 methyl 2-<2-<(2,4-dinitrophenyl)methylhydrazono>ethyl>-6-(methoxycarbonyl)-7-methyl-1,2,5,6-tetrahydro-1,5-methanoazocino<4,3-b>indole-4-(E)-acrylate