[2-(4-chloro-pyrimidin-2-yloxy)-phenyl]-(5,6-dihydro-[1,4,2]dioxazin-3-yl)-methanone O-methyl oxime 、
1,3-二氟-2-丙醇 在
potassium carbonate 作用下,
以
正己烷 、
乙酸乙酯 、
丙酮 、
乙腈 为溶剂,
生成 (5,6-dihydro-[1,4,2]dioxazin-3-yl)-{2-[4-(2-fluoro-1-fluoromethyl-ethoxy)-pyrimidin-2-yloxy]-phenyl }-methanone O-methyl oxime