Potassium Carbonate → N-[2-methyl-5-(1H-pyrazol-5-yl)phenyl]-4-[(4-phenylquinazolin-2-yl)amino]benzamide

Participants

Reaction Conditions

Reaction Steps

A mixture of N-(5-bromo-2-methylphenyl)-4-[(4-phenylquinazolin-2-yl)amino]benzamide (116 mg, 0.228 mmol), pyrazole-2-boronic acid (218 mg, 1.9 mmol), potassium carbonate (1.4 mmol) and tetrakis(triphenylphosphine)palladium (27 mg, 0.023 mmol) in dioxane (2 mL) was heated to 110° C. overnight. The reaction was cooled, concentrated on a rotary evaporator and purified by preparative reverse phase HPLC to give N-[2-methyl-5-(1H-pyrazol-5-yl)phenyl]-4-[(4-phenylquinazolin-2-yl)amino]benzamide (78 mg, 69%) as a yellow solid. 1H NMR (400 MHz, DMSO-d6): δ 10.33 (s, 1H), 9.79 (s, 1H), 8.18 (d, 2H), 8.02 (d, 2H), 7.86 (m, 3H), 7.80 (m, 3H), 7.70 (s, 1H), 7.64 (m, 3H), 7.60 (dd, 1H), 7.42 (dt, 1H), 7.31 (d, 1H), 6.69 (d, 1H), 2.50 (s, 3H). MS (EI) for C31H24N6O: 497.1 (MH+).

Provenance & Evidence