Hydrochloric Acid → HCID 178444592, compound

Participants

Reaction Steps

A solution of chiral methyl 5-((2R,3S,4R,5S)-3-(3-chloro-2-fluorophenyl)-4-(4-chloro-2-fluorophenyl)-4-cyano-5-neopentylpyrrolidine-2-carboxamido)-1H-benzo[d]imidazole-2-carboxylate (84.4 mg, mmol) in THF (6 ml) was reacted with LITHIUM HYDROXIDE MONOHYDRATE (22.9 mg, 0.545 mmol) in water (3 ml) and stirred at rt overnight. The reaction mixture was treated with 1 N HCl (0.37 ml, pH 3-4) and extracted with ethyl acetate. The organic extract was washed with water and brine, dried with sodium sulfate, filtered and lyophilized to give chiral-5-((2R,3S,4R,5S)-3-(3-chloro-2-fluorophenyl)-4-(4-chloro-2-fluorophenyl)-4-cyano-5-neopentylpyrrolidine-2-carboxamido)-1H-benzo[d]imidazole-2-carboxylic acid (36 mg, 43.6%) a white solid, MS (ES+) m/z Calcd: [(M+H)+]: 626.15. found: 626.0.

Provenance & Evidence