Dimethyl 2,6-dimethyl-4-(4-methylphenyl)-1-[2-(3-furanyl)ethyl]-1,4-dihydropyridine-3,5-dicarboxylate 在
四氯化钛 氮 作用下,
反应 16.0h,
以to obtain the desired dimethyl 4,9,10,10a-tetrahydro-7,10a-dimethyl-9-(4-methylphenyl)-5H-furano[2,3-a]quinolizine-8,10-dicarboxylate product in the reaction mixture的产率得到Dimethyl 4,9,10,10a-Tetrahydro-7,10a-dimethyl-9-(4-methylphenyl)-5H-furano[2,3-a]quinolizine-8,10-dicarboxylate