反应详情

N-(5-Bromo-2-chloropyridin-3-yl)-4-methoxybenzenesulfonamide (1.49 g, 3.95 mmol) was treated with boron tribromide (1M in dichloromethane, 20 ml, 20 mmol) with dichloromethane (10 ml) as a solvent according to the method described in Example 23. The resulting crude was purified by flash chromatography using SP1® Purification System (0% to 30%, dichloromethane-ethyl acetate) to obtain 0.6 g (42% yield) of the title compound. Purity: 100%

1. customThe resulting crude was purified by flash chromatography
2. customSP1® Purification System (0% to 30%, dichloromethane-ethyl acetate)