racemic (2'R,3R,4'S)-2'-[5-bromo-2-(4-hydroxycarbonyl-phenoxy)-phenyl]-6-chloro-4'-(3-chlorophenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione 在
吡啶 、
三聚氟氰 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以98%的产率得到racemic (2'R,3R,4'S)-2'-[5-bromo-2-(4-fluorocarbonyl-phenoxy)-phenyl]-6-chloro-4'-(3-chlorophenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione