反应详情

To a mixture of 4-chloro-2-methylsulfanylpyrimidine-5-carbonyl chloride prepared above (113 mg, 0.54 mmol) in dichloromethane was added 4-fluoroaniline (56 μL, 0.59 mmol). This was followed by the dropwise addition of DIPEA. The mixture was stirred for 15 min, the mixture was diluted with dichloromethane, washed with water and saturated aqueous sodium bicarbonate and was dried over sodium sulfate. Filtration and concentration afforded a residue that was purified by trituration from ethyl acetate with hexanes. The resulting off-white solid (122 mg, 0.41 mmol, 76%) was sufficiently pure to use without further purification. 1H NMR (300 MHz, DMSO-d6) δ 10.7 (s, 1H), 8.86 (s, 1H), 7.69 (m, 2H), 7.23 (m, 2H), 2.56 (s, 3H); MS (EI) m/z 296.2 (M−H)−.

1. washwashed with water and saturated aqueous sodium bicarbonate
2. dry with materialwas dried over sodium sulfate
3. filtrationFiltration and concentration
4. customafforded a residue that
5. customwas purified by trituration from ethyl acetate with hexanes
6. customto use without further purification