Z-6-chloro-3-[5-chloro-2-(1-ethoxycarbonyl-1-methyl-ethoxy)-benzylidene]-2-oxo-2,3-dihydro-indole-1-carboxylic acid tert-butyl ester 、
1-(2-chloro-5-fluoro-phenyl)-3-trimethylsilyoxy-2-aza-1,3-butadiene 以
甲苯 为溶剂,
以to give the title compound as a white solid (400 mg)的产率得到racemic (2'R,3S,4'R)-6-chloro-4'-[5-chloro-2-(1-ethoxycarbonyl-1-methyl-ethoxy)-phenyl]-2'-(2-chloro-5-fluoro-phenyl)spiro[3H-indole-3,3'-piperidine]-2,6'(1H)-dione