sodium;hydride 、
4-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-5-hydroxypyrimidine 、
2-溴丙酸甲酯 、
氯化铵 在
乙酸乙酯 、
氯化铵 、
magnesium sulfate 、
4-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-5-{1-(methoxycarbonyl)ethoxy}pyrimidine 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 4.0h,
以to obtain 0.319 g of 4-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-5-{1-(methoxycarbonyl)ethoxy}pyrimidine [present compound 3-52]的产率得到4-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-5-{1-(methoxycarbonyl)ethoxy}pyrimidine