Diisopropylethylamine → HCID 51357808, compound

Participants

Reaction Steps

To a mixture of rac-(2S,3S,4S)-2-(3-chloro-2-fluoro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-4-(2,2-dimethyl-propyl)-pyrrolidine-3-carbonitrile (80 mg, 0.0189 mmol) and diisopropylethylamine (122 mg, 0.942 mmol) in CH2Cl2 (6 mL) was added p-(chlorosulfonyl)benzoic acid (70.0 mg, 0.283 mmol, Eastman) and the reaction mixture was stirred at room temp. for 6 hrs. The resulting mixture was diluted with EtOAc, washed with aqueous Na2CO3, 1N HCl and brine, and concentrated to dryness to give rac-4-[(2S,3S,4S)-2-(3-chloro-2-fluoro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-3-cyano-4-(2,2-dimethyl-propyl)-pyrrolidine-1-sulfonyl]-benzoic acid (44.2 mg, 38%) as a white solid. HRMS (ES+) m/z Calcd for C29H26Cl2F2N2O4S H [(M+H)+]: 607.1031; Found: 607.1032.

Provenance & Evidence