反应详情

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 (53 mg, 0.125 mmol), diisopropylethylamine (64.7 mg, 0.50 mmol), dimethylaminopyridine (3 mg, 0.024 mmol, Aldrich) in CH2Cl2 (6 mL) and 6-chloro-nicotinoyl chloride (41.0 mg, 0.232 mmol, Aldrich) was stirred at room temp. for 2 hrs before diluted with EtOAc, washed with aqueous Na2CO3, brine, and concentrated. The residue was purified by flash column to give rac-(2S,3S,4S)-2-(3-chloro-2-fluoro-phenyl)-3-(4-chloro-2-fluoro-phenyl)-1-(6-chloro-pyridine-3-carbonyl)-4-(2,2-dimethyl-propyl)-pyrrolidine-3-carbonitrile (58.3 mg, 83%) as a white solid. HRMS (ES+) m/z Calcd for C28H24Cl3F2N3O+H [(M+H)+]: 562.1026; Found: 562.1026

1. washwashed with aqueous Na2CO3, brine
2. concentrationconcentrated
3. customThe residue was purified by flash column