Triethylamine → rac-(2'S,3'S,4'S)-6-chloro-2'-(3-chloro-2-fluoro-phenyl)-4'-(2,2-dimethyl-propyl)-2-oxo-1,2-dihydro-spiro[indole-3,3'-pyrrolidine]-1'-carboxylic acid (1-methanesulfonyl-piperidin-4-ylethyl)-amide

Participants

Reaction Steps

In a manner similar to the method described in Example 27, rac-(2′S,3′S,4′S)-6-chloro-2′-(3-chloro-2-fluoro-phenyl)-4′-(2,2-dimethyl-propyl)-2-oxo-1,2-dihydro-spiro[indole-3,3′-pyrrolidine]-1′-carboxylic acid (piperidin-4-ylethyl)-amide trifluoroacetic acid prepared in Example 51 (30 mg, 0.04 mmol) was reacted with triethylamine and methanesulfonyl chloride (5.5 mg, 0.05 mmol) in dichloromethane to give rac-(2′S,3′S,4′S)-6-chloro-2′-(3-chloro-2-fluoro-phenyl)-4′-(2,2-dimethyl-propyl)-2-oxo-1,2-dihydro-spiro[indole-3,3′-pyrrolidine]-1′-carboxylic acid (1-methanesulfonyl-piperidin-4-ylethyl)-amide as a white solid (Yield, 27 mg, 959%).

Provenance & Evidence