反应详情

To a solution of 5-(5-(6-(trifluoromethyl)quinolin-4-yloxy)pentyloxy)-2-(hydroxymethyl)-4H-pyran-4-one 11 (93 mg, 0.22 mmol) in CH2Cl2 (5 mL) was added at 0° C. triethylamine (37 μL, 0.26 mmol), methanesulfonyl chloride (20.5 μL, 0.26 mmol). The solution was stirred at RT for 1.5 h. Dichloromethane (50 mL) was added and the solution was washed with water (2×100 mL), dried over MgSO4, filtered and evaporated. (5-(5-(6-(Trifluoromethyl)quinolin-4-yloxy)pentyloxy)-4-oxo-4H-pyran-2-yl)methyl methanesulfonate 16 was obtained (100 mg, 90.5% yield) as a pale yellow oil.

1. washthe solution was washed with water (2×100 mL)
2. dry with materialdried over MgSO4
3. filtrationfiltered
4. customevaporated