反应详情

A mixture of 0.60 g of methyl [3-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-pyridyloxy]acetate (compound a-6), 0.13 g of sodium carbonate, and 7.0 ml of ethanol was heated at reflux for 2 hours. After cooling to room temperature, the solvent was distilled out under reduced pressure, and the residue was subjected to silica gel chromatography to give 0.55 g of ethyl [3-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-pyridyloxy]acetate (compound a-10).

1. temperaturewas heated
2. temperatureat reflux for 2 hours
3. distillationthe solvent was distilled out under reduced pressure