rac-(2'R,3'S,4'S,5'R)-6-chloro-4'-(3-chloro-2-fluoro-phenyl)-2'-(2,2-dimethyl-propyl)-2-oxo-1,2-dihydro-spiro[indole-3,3'-pyrrolidine]-5'-carboxylic acid trifluoroacetic acid 、
N,N-二异丙基乙胺 、
二苯基次膦酰氯 、
1-(4-amino-phenyl)-2-(tert-butyl-dimethyl-silanyloxy)-ethanone 以to give rac-(2′S,3′R,4′S,5′R)-6-chloro-4′-(3-chloro-2-fluoro-phenyl)-2′-(2,2-dimethyl-propyl)-2-oxo-1,2-dihydro-spiro[indole-3,3′-pyrrolidine]-5′-carboxylic acid {4-[2-(tert-butyl-dimethyl-silanyloxy)-acetyl]-phenyl}-amide as a yellow foam (Yield 0.1 g, 26%)的产率得到rac-(2'S,3'R,4'S,5'R)-6-chloro-4'-(3-chloro-2-fluoro-phenyl)-2'-(2,2-dimethyl-propyl)-2-oxo-1,2-dihydro-spiro[indole-3,3'-pyrrolidine]-5'-carboxylic acid {4-[2-(tert-butyl-dimethyl-silanyloxy)-acetyl]-phenyl}-amide