反应详情

To a solution of (4-fluoro-1-methylpiperidin-4-yl)methanol (0.265 g) in tetrahydrofuran (2 mL) was added sodium hydride (0.288 g). After 15 minutes, 3-chloro-4-fluorobenzenesulfonamide (0.377 g) was added as a solution in tetrahydrofuran (1 mL). The reaction was stirred for 2 hours, quenched with water (5 mL), adjusted to pH˜7 with 1N aqueous HCl, and extracted with dichloromethane (2×25 mL). The organic layer was washed with brine (25 mL), dried over magnesium sulfate, filtered and concentrated. Silica gel chromatography (Reveleris 40 g) eluting with a gradient of 0.1% to 10% methanol containing 2N NH3/dichloromethane over 30 minutes gave the title compound.

1. customquenched with water (5 mL)
2. extractionextracted with dichloromethane (2×25 mL)
3. washThe organic layer was washed with brine (25 mL)
4. dry with materialdried over magnesium sulfate
5. filtrationfiltered
6. concentrationconcentrated
7. washSilica gel chromatography (Reveleris 40 g) eluting with a gradient of 0.1% to 10% methanol containing 2N NH3/dichloromethane over 30 minutes