反应详情

To a solution of 0.30 g (0.965 mmol) of the product of Example 20 in 10 mL of THF/methanol (1:1) was added 4.8 mL of a 1.0N sodium hydroxide solution and the reaction was stirred overnight at room temperature and then acidified to pH 2 with 10% HCl solution. The resulting mixture was extracted with dichloromethane and the combined organics were dried over MgSO4, filtered and concentrated in vacuo to provide 0.238 g (83%) of the sulfonamide as a white solid. Electrospray Mass Spec 281.9 (M−H)−.

1. extractionThe resulting mixture was extracted with dichloromethane
2. dry with materialthe combined organics were dried over MgSO4
3. filtrationfiltered
4. concentrationconcentrated in vacuo