Potassium Carbonate → 6-(4-{5-[(4-Fluorophenyl)methyl]pyrimidin-4-yl}-2,3,4,5-tetrahydro-1,4-benzoxazepin-7-yl)-3-nitropyridin-2-amine

Participants

Reaction Conditions

Reaction Steps

To a solution of (4-{5-[(4-fluorophenyl)methyl]pyrimidin-4-yl}-2,3,4,5-tetrahydro-1,4-benzoxazepin-7-yl)boronic acid (example 8, step 2) (0.200 g, 0.509 mmol) and 2-amino-6-chloro-3-nitropyridine (0.106 g, 0.610 mmol) in dioxane (3 mL) and water (0.4 ml) was added potassium carbonate (0.211 g, 1.53 mmol). The solution was sparged with N2 (g) for five minutes before the addition of dichloro[1,1-bis(diphenylphosphino]ferrocenepalladium (II) dichloromethane adduct (0.042 g, 10 mol %). The resulting suspension was heated at 90° C. for 20 h in a sealed tube vessel. On cooling to room temperature the mixture was diluted with acetonitrile (25 mL) then filtered and concentrated to afford 6-(4-{5-[(4-fluorophenyl)methyl]pyrimidin-4-yl}-2,3,4,5-tetrahydro-1,4-benzoxazepin-7-yl)-3-nitropyridin-2-amine (0.247 g, 100% yield) as an oil that was used without further purification. MS (EI) for C26H23FN6O3: 487 (MH+).

Provenance & Evidence