tert-butyl 2-[1-(3-ethylidene-1-phenylmethoxycarbonylpiperidin-4-ylidene)ethyl]indole-1-carboxylate 在
(CuOTf)*toluene 作用下,
以
二氯甲烷 、
乙腈 为溶剂,
反应 1.0h,
以85%的产率得到phenylmethyl 6-[(tert-butyl)oxycarbonyl]-5,11-dimethyl-1,2,3,4-tetrahydropyrido[4,3-b]carbazole-2-carboxylate