racemic (2'R,3R,4'S)-6-chloro-4'-(3-chlorophenyl)-2'-[2-(1-hydroxycarbonylmethyl-4-piperidinyloxy)-5-iodo-phenyl]spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione 在
氯化铵 、
1-羟基苯并三唑 、
盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 、
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 1.0h,
生成
(2'S,3S,4'R)-2'-[2-(1-carbamoylmethyl-4-piperidinyloxy)-5-iodo-phenyl]-6-chloro-4'-(3-chlorophenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione 、
(2'R,3R,4'S)-2'-[2-(1-carbamoylmethyl-4-piperidinyloxy)-5-iodo-phenyl]-6-chloro-4'-(3-chlorophenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione