异氰酸正丁酯 、
methyl trans-1'-(4-methoxyphenyl)-2',3',4',9'-tetrahydrospiro[cyclopropane-1,4'-1H-β-carboline]-3'-carboxylate 以
丁酮 为溶剂,
反应 12.0h,
以91%的产率得到trans-2'-butyl-10'-(4-methoxyphenyl)-3a',4',9',10'-tetrahydrospiro[cyclopropane-1,4'-(2',9',11'-triazacyclopenta[b]fluorene)]-1',3'-dione