Hydrochloric Acid → HCID 71737903, compound

Participants

Reaction Steps

A solution of 1-((2,2-dimethyl-1,3-dioxolan-4-yl)methylcarbamoyloxy)ethyl 4-((2R,3S,4R,5S)-3-(3-chloro-2-fluorophenyl)-4-(4-chloro-2-fluorophenyl)-4-cyano-5-neopentylpyrrolidine-2-carboxamido)-3-methoxybenzoate (Example 15, 75.7 mg, 0.092 mmol) in acetonitrile (4 mL) was treated with a 2M solution of hydrochloric acid in ether (Sigma Aldrich, 0.5 mL, 1.00 mmol) and stirred for 70 min. The reaction mixture was concentrated, diluted with ethyl acetate and washed with saturated aqueous sodium bicarbonate, brine, dried and concentrated. The crude material was then purified by flash chromatography (methylene chloride/methanol) to give 4-{[(2R,3S,4R,5S)-4-(4-chloro-2-fluoro-phenyl)-3-(3-chloro-2-fluoro-phenyl)-4-cyano-5-(2,2-dimethyl-propyl)-pyrrolidine-2-carbonyl]-amino}-3-methoxy-benzoic acid 1-(2,3-dihydroxy-propylcarbamoyloxy)-ethyl ester as a white solid (36.6 mg, 50% yield). MS (ES+) m/z calcd. for C37H40Cl2F2N4O8: [(M+H)+]: 777 found: 777

Provenance & Evidence