反应详情

5-Chloro-2,4-difluorobenzenesulfonyl chloride (200 mg, 0.81 mmol), N-(2,4-dimethoxybenzyl)-5-fluoropyridin-2-amine (Preparation 106, 255 mg, 0.97 mmol) and pyridine (196 μL, 2.43 mmol) in dichloromethane (3 mL) were stirred at room temperature for 36 hours. The mixture was evaporated in vacuo and the residue was purified by silica gel column chromatography (5 g Varian bond-elut cartridge, heptane/ethyl acetate 100/0 to 70/30) to afford the title compound (193 mg) as a gum.

1. customThe mixture was evaporated in vacuo
2. customthe residue was purified by silica gel column chromatography (5 g Varian bond-elut cartridge, heptane/ethyl acetate 100/0 to 70/30)