反应详情

A solution of 200 mg (0.56 mmol) 5-chloromethyl-4-cyclopropyl-6-methoxymethyl-2-(4-trifluoromethyl-phenyl)-pyrimidine (example 113H]), 125 mg (0.56 mmol) 2-(4-hydroxy-phenoxy)-2-methyl-propionic acid ethyl ester [Newman, Melvin S.; Cella, James A. Monoalkylation of hydroquinone. Journal of Organic Chemistry (1974), 39(2), p 214–15] and 237 mg (0.73 mmol) cesium carbonate in 3 ml DMF was stirred for 3 h at RT. The reaction mixture was taken up in ether and washed with 1N HCl and water. After purification of the crude product by chromatography over silica gel with AcOEt/heptane 1:3, 223 mg of pure 2-{4-[4-Cyclopropyl-6-methoxymethyl-2-(4-trifluoromethyl-phenyl)-pyrimidin-5-ylmethoxy]-phenoxy}-2-methyl-propionic acid ethyl ester was isolated.

1. washwashed with 1N HCl and water
2. customAfter purification of the crude product by chromatography over silica gel with AcOEt/heptane 1:3