反应详情

Sulfuric acid (2 mL) was added to 2-(6-((2-(3-chlorophenyl)-6-ethylpyrimidin-4-yl)oxy)pyridin-3-yl)acetonitrile (0.061 g, 0.18 mmol) at 0° C. and slowly warmed to rt. The mixture was stirred for 2 h, diluted with saturated aqueous sodium bicarbonate, and extracted with ethyl acetate. The combined organic layer was dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated. The residue was purified by column chromatography (silica, dichloromethane/methanol) to afford the title compound (0.020 g, 34%) as a white solid. MW=368.22. 1H NMR (DMSO-d6, 300 MHz) δ 8.44-8.37 (m, 2H), 8.10-8.05 (m, 1H), 7.92 (s, 1H), 7.70-7.56 (m, 2H), 7.53-7.43 (m, 2H), 7.01 (s, 1H), 6.55 (d, J=9.4 Hz, 1H), 3.30 (d, 2H), 2.93 (q, J=7.6 Hz, 2H), 1.33 (t, J=7.6 Hz, 3H); APCI MS m/z 369 [M+H]+.

1. extractionextracted with ethyl acetate
2. dry with materialThe combined organic layer was dried over anhydrous sodium sulfate
3. filtrationfiltered
4. concentrationthe filtrate was concentrated
5. customThe residue was purified by column chromatography (silica, dichloromethane/methanol)