反应详情

The product of example 38 (SC-83316), 1-benzyl-4-[(3-chlorobenzyl)oxy]-6-methylpyridin-2(1H)-one (0.91 mmol, 310 Mg), acetic acid (20 mL), and sodium acetate (0.91 mmol, 80 Mg) were stirred at room temperature when bromine (0.91 mmol, 145 Mg) was added. After stirring for one hour, the mixture was concentrated, dissolved in ethyl acetate, and washed successively with saturated aqueous sodium bicarbonate solution, brine, and water. After drying over magnesium sulfate and concentrating, the product was recrystallized from tetrahydrofuran/hexanes to yield a white solid. (240 Mg, 63%): 1H NMR (DMSO-d6/300 MHz) 7.6-7.0 (m, 10H), 6.5 (s, 1H), 5.33 (s, 2H), 5.33 (s, 2H), 2.3 (s, 3H). ESHRMS m/z 420.019 (M+H, C20H17NO2BrCl requires 420.019).

1. additionwas added
2. concentrationthe mixture was concentrated
3. dissolutiondissolved in ethyl acetate
4. washwashed successively with saturated aqueous sodium bicarbonate solution, brine, and water
5. dry with materialAfter drying over magnesium sulfate
6. concentrationconcentrating
7. customthe product was recrystallized from tetrahydrofuran/hexanes
8. customto yield a white solid