反应详情

Ethylamine tetrahydrofuran solution (2M, 2 ml) was diluted with tetrahydrofuran (2 ml), 2-(methylsulfinyl)-3-[4-(2,2,2-trifluoroethoxy)phenyl]pyrido[2,3-d]pyrimidine-4,7(3H,8H)-dione (100 mg) was added thereto at room temperature, and the mixture was stirred at room temperature for 10 min. The pH of the reaction mixture was adjusted to about 7 with 0.5M hydrochloric acid (about 4 ml), and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The obtained white residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (52 mg) as a white solid.

1. additionwas added
2. extractionthe mixture was extracted with ethyl acetate
3. washThe extract was washed with saturated brine
4. dry with materialdried over anhydrous magnesium sulfate
5. concentrationconcentrated under reduced pressure
6. customThe obtained white residue was purified by silica gel column chromatography (ethyl acetate/hexane)