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)-1-(6-oxo-1,6-dihydro-pyridine-3-carbonyl)-pyrrolidine-3-carbonitrile (15.1 mg, 0.0277 mmol, example 40), cesium carbonate (27 mg, 0.0829 mmol, Aldrich) in DMF (3 mL) and iodomethane was stirred at room temp. for 3 hrs before it was diluted with EtOAc, washed with water and brine, dried 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)-4-(2,2-dimethyl-propyl)-1-(1-methyl-6-oxo-1,6-dihydro-pyridine-3-carbonyl)-pyrrolidine-3-carbonitrile (15.0 mg, 96%) as a white solid.

1. washwashed with water and brine
2. customdried
3. concentrationconcentrated
4. customThe residue was purified by flash column