Aniline → (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 phenylamide

Participants

Reaction Steps

In a manner similar to the method described in Example 5, chiral (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 trifluoroacetic acid prepared in Example 136 (0.15 g, 0.26 mmol), was reacted with diisopropylethylamine (0.17 g, 1.3 mmol), diphenylphosphinic chloride (0.17 g, 0.53 mmol), then reacted with aniline (Aldrich) (0.05 g, 0.53 mmol) to give chiral (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 phenylamide as a white foam (Yield 0.033 g, 24%).

Provenance & Evidence