反应详情

A mixture of 6-ethyl-1-{[3-fluoro-2′-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl}-3-[2-hydroxy-2-(4-methoxyphenyl)ethyl]thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione (0.3 g), acetic anhydride (0.07 mL), triethylamine (0.1 mL), N,N-dimethylpyridin-4-amine (0.006 g) and methylene chloride (20 mL) was stirred at room temperature for 16 hr. The reaction mixture was washed successively with water and saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. The precipitated solid was collected by filtration to give the title compound as colorless crystals (0.23 g, 71%).

1. washThe reaction mixture was washed successively with water and saturated brine
2. dry with materialdried over anhydrous magnesium sulfate
3. customThe solvent was evaporated under reduced pressure
4. filtrationThe precipitated solid was collected by filtration