racemic (2'S,3S,4'R)-6-chloro-4'-[5-chloro-2-(1-methoxycarbonyl-1-methyl-ethoxy)pyridin-3-yl]-2'-(5-chloro-2-methyl-phenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione 在
lithium hydroxide monohydrate 、
水 、
N,N'-羰基二咪唑 作用下,
以
甲醇 、
N,N-二甲基甲酰胺 为溶剂,
反应 5.67h,
生成
(2'S,3S,4'R)-4'-[5-chloro-2-(2-methanesulfonylamino-1,1-methyl-2-oxo-ethoxy)pyridin-3-yl]-6-chloro-2'-(5-chloro-2-methyl-phenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione 、 racemic (2'S,3S,4'R)-4'-[5-chloro-2-(2-methanesulfonylamino-1,1-methyl-2-oxo-ethoxy)pyridin-3-yl]-6-chloro-2'-(5-chloro-2-methyl-phenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione