反应详情

A solution of tetrabutylammonium fluoride (1.0 M in THF, 0.44 mL, 0.44 mmol, 1.1 equiv) was added to a solution of (R)-4-(((tert-butyldiphenylsilyl)oxy)methyl)-3-(2-fluoropyrimidin-4-yl)oxazolidin-2-one (180 mg, 0.40 mmol) in THF (4 mL) at room temperature. The solution was stirred for 1 hour and then diluted with saturated aqueous sodium chloride (30 mL). The mixture was extracted with ethyl acetate (2×30 mL) and the combined extracts were dried over Na2SO4, filtered and concentrated. Silica gel column chromatography (EtOAc/Heptane) provided (S)-3-(2-fluoropyrimidin-4-yl)-4-(hydroxymethyl)oxazolidin-2-one (0.051 g, white solid) in 60% yield. 1H NMR (400 MHz, CDCl3) δ 8.51 (dd, J=5.8, 2.1 Hz, 1H), 8.19 (dd, J=5.8, 3.8 Hz, 1H), 4.86 (dq, J=8.1, 4.0 Hz, 1H), 4.55 (m, 2H), 4.09 (m, 1H), 3.96 (m, 1H), 2.18 (t, J=5.4 Hz, 1H). MS m/z 214.0 (M+H)+; Rt-0.37 min.

1. extractionThe mixture was extracted with ethyl acetate (2×30 mL)
2. dry with materialthe combined extracts were dried over Na2SO4
3. filtrationfiltered
4. concentrationconcentrated