racemic (2'S,3S,4'R)-6-chloro-4'-[5-chloro-2-(1-ethyl-1-hydroxycarbonyl-propoxy)-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 、
氨 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 4.0h,
生成 (2'S,3S,4'R)-6-chloro-4'-[5-chloro-2-(1-carbamoyl-1-ethyl-propoxy)-phenyl]-2'-(5-fluoro-2-methyl-phenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione