乙酸酐 、 rac-(2'S,3S,4'R)-6-chloro-4'-[5-chloro-2-(1-hydroxycarbonyl-1-propyl-butoxy)-phenyl]-2'-(5-fluoro-2-methyl-phenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione 在
4-二甲氨基吡啶 作用下,
以
四氢呋喃 为溶剂,
反应 0.5h,
生成
(2'R,3R,4'S)-1-acetyl-6-chloro-4'-[5-chloro-2-(1-hydroxycarbonyl-1-propyl-butoxy)-phenyl]-2'-(5-fluoro-2-methyl-phenyl) spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione