racemic (2'R,3'R,4'S)-6-chloro-4'-(3-chlorophenyl)-2'-[5-fluoro-2-(tetrahydro-thiopyran-4-yloxy)-phenyl]spiro[3H-indole-3,3'-piperidine]-2,6'-dione 在
间氯过氧苯甲酸 、
水 、 sodium thiosulfate 作用下,
以
二氯甲烷 为溶剂,
生成
(2'R,3'R,4'S)-6-chloro-4'-(3-chlorophenyl)-2'-[5-fluoro-2-(1,1-dioxo-tetrahydro-thiopyran-4-yloxy)-phenyl]spiro[3H-indole-3,3'-piperidine]-2,6'-dione