反应详情

温度

80 °C

Ethyl 4-(2-{(3,5-bis-trifluoromethyl-benzyl)-[2-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-5-trifluoromethyl-benzyl]-amino}-pyrimidin-5-yloxy)-butyrate (300 mg) is dissolved in 1,4-dioxane (5 ml) and thereto are added 4-chloro-5-methoxy-2-methylsulfanyl-pyrimidine (117 mg), [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium dichloromethane complex (33 mg) and cesium carbonate (199 mg), and the mixture is stirred under nitrogen atmosphere at 80° C. overnight. The reaction solution is cooled to room temperature, and thereto are added chloroform and water, and the insoluble materials are removed by filtration through Celite™. The filtrate is separated, and the organic layer is dried and concentrated under reduced pressure. The resulting residue is purified by silica gel column chromatography (hexane:ethyl acetate=9:1→7:3) to give ethyl 4-(2-{(3,5-bis-trifluoromethyl-benzyl)-[2-(5-methoxy-2-methylsulfanyl-pyrimidin-4-yl)-5-trifluoromethyl-benzyl]-amino}-pyrimidin-5-yloxy)-butyrate (165 mg). MS (m/z): 764 [M+H]+

1. temperatureThe reaction solution is cooled to room temperature
2. customthe insoluble materials are removed by filtration through Celite™
3. customThe filtrate is separated
4. customthe organic layer is dried
5. concentrationconcentrated under reduced pressure
6. customThe resulting residue is purified by silica gel column chromatography (hexane:ethyl acetate=9:1→7:3)