反应详情

温度

85 °C

A slurry of 380 mg (1.00 mmol) 4-(5-bromo-pyridin-3-yl)-2-(2-fluoro-phenyl)-[1,8]naphthyridine, 354 mg (1.10 mmol) 1-[2-(tetrahydro-pyran-2-yloxy)-ethyl]-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole (prepared from 4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole and 2-(2-bromo-ethoxy)-tetrahydro-pyran (in analogy to example 10) and 425 mg (2.00 mmol) tri-potassium-phosphate-trihydrate in 3 ml 1,2-dimethoxyethane was heated to 85° C. under nitrogen. Then 35.1 mg (0.05 mmol) bis-(triphenylphosphine)-palladium(II)-chloride and 14 μl trimethylamine were added. The reaction mixture was stirred for 16 hours at 85° C. The reaction mixture was cooled to room temperature and partitioned between water and dichloromethane. The organic phase was dried over sodium sulfate and evaporated. The residue was chromatographed on a silica gel column with dichloromethane/methanol as eluent yielding yielding 2-(2-fluoro-phenyl)-4-(5-{1-[2-(tetrahydro-pyran-2-yloxy)-ethyl]-1H-pyrazol-4-yl}-pyridin-3-yl)-[1,8]naphthyridine as yellow solid; HPLC-MS: 2.13 min, [M+H] 496.

1. temperatureThe reaction mixture was cooled to room temperature
2. custompartitioned between water and dichloromethane
3. dry with materialThe organic phase was dried over sodium sulfate
4. customevaporated
5. customThe residue was chromatographed on a silica gel column with dichloromethane/methanol as eluent
6. customyielding