反应详情

To a solution of 8-ethyl-2-(methylthio)-6-phenylpyrido[2,3-d]pyrimidin-7(8H)-one (127 mg, 0.43 mmol) in dichloromethane (2 mL) was added 3-chloroperbenzoic acid (70%, 95 mg, 0.38 mmol) at 0-5° C. and the mixture was stirred at room temperature for 18 h. The reaction was diluted with dichloromethane (5 mL) and washed with saturated sodium bicarbonate solution (1×3 mL) then with water (1×3 mL). The organic layer was dried over sodium sulfate, filtered and evaporated to get 8-ethyl-2-(methylsulfinyl)-6-phenylpyrido[2,3-d]pyrimidin-7(8H)-one as a pale yellow solid (120 mg, 0.38 mmol, 88%). ESMS m/z 314 (M+H)+.

1. washwashed with saturated sodium bicarbonate solution (1×3 mL)
2. dry with materialThe organic layer was dried over sodium sulfate
3. filtrationfiltered
4. customevaporated