2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidine-1-yl]phenol 、 Methyl 2-[3-(1-hydroxyethyl)phenoxy]propionate 、
三苯基膦 、 N-carboxylatoiminocarbamate 在
ice 、
methyl 2-[3-(1-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidine-1-yl]phenoxy}ethyl)phenoxy]propionate 作用下,
以
四氢呋喃 为溶剂,
反应 16.0h,
以to give methyl 2-[3-(1-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidine-1-yl]phenoxy}ethyl)phenoxy]propionate [Compound 2-21]的产率得到methyl 2-[3-(1-{2-chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidine-1-yl]phenoxy}ethyl)phenoxy]propionate