反应详情

温度

70 °C

To a mixture of 5-hydroxy-4-{1-(methoxycarbonyl)ethoxy}pyrimidine, 2,5-difluoro-4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]nitrobenzene and N,N-dimethylformamide is added potassium carbonate, and the mixture is stirred for 1 hour at 70° C. The reaction solution is cooled to room temperature, then, poured into ice water, and extracted with ethyl acetate. The organic layer is washed with saturated saline, dried over anhydrous magnesium sulfate, and concentrated. The residue is subjected to silica gel column chromatography to obtain 5-{4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]-2-nitrophenoxy}-4-{1-(methoxycarbonyl)ethoxy}pyrimidine.

1. temperatureThe reaction solution is cooled to room temperature
2. extractionextracted with ethyl acetate
3. washThe organic layer is washed with saturated saline
4. dry with materialdried over anhydrous magnesium sulfate
5. concentrationconcentrated