反应详情

To a round bottom flask containing a solution of (S)-3-(5-Chloro-2-methoxy-phenyl)-1-chloromethyl-3-fluoro-6-trifluoromethyl-1,3-dihydro-indol-2-one (S)-IV) (0.486 g, 1.2 mmol) in anhydrous acetonitrile (9 mL) was added 2,3,4,6-tetra-O-benzyl-D-glucopyranose (V; 0.648 g, 1.2 mmol) and cesium carbonate (0.390 g, 1.2 mmol). The reaction mixture was allowed to stir at room temperature overnight. The solvent was then removed, and the crude product was purified via flash chromatography (silica gel, 5:1 hexanes:ethyl acetate) to give a 1:1 mixture of α and β anomers of the title compound (0.768 g, 71%). 1H NMR (CDCl3, 400 MHz): δ 7.79 (dd, 2H, J=5.1 Hz, 1.8 Hz), 7.37-7.12 (m, 48H), 6.66 (m, 2H), 5.66 (d, 1H, J=11.0 Hz), 5.34 (m, 2H), 5.08 (d, 1H, J=3.7 Hz), 4.89-4.73 (m, 9H), 4.66-4.44 (m, 9H), 3.79 (m, 3H), 3.73-3.59 (m, 6H), 3.55-3.49 (m, 3H), 3.38 (d, 6H, J=4.1 Hz).

1. customThe solvent was then removed
2. customthe crude product was purified via flash chromatography (silica gel, 5:1 hexanes:ethyl acetate)
3. customto give