Potassium Carbonate → HCID 178423693, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of 4-amino-5-{4-[(5-chloro-3H-imidazo[4,5-b]pyridin-2-yl)amino]phenyl}-N-(2,2,2-trifluoroethyl)pyrrolo[2,1-f][1,2,4]triazine-6-carboxamide (50 mg, 0.1 mmol), p-tolylboronic acid (27 mg, 0.2 mmol), potassium carbonate (82 mg, 0.6 mmol), in DMF was added 1,1′-bis(diphenylphosphino)ferrocinepalladium (II) chloride (7.3 mg, 0.01 mmol). The mixture was then degassed using nitrogen for 10 min, and then heated (150° C.) in a microwave for 15 min. After cooling to room temperature, the mixture was diluted with methanol and concentrated under reduced pressure. The residue purified by silica gel chromatography using a 1 to 8% methanol/dichloromethane as the eluant to afford the desired product (5.9 mg, 11%). 1H-NMR (300 MHz, CD3OD) 7.86 (s, 1H), 7.81-7.87 (m, 4H), 7.73-7.79 (m, 2H), 7.63-7.69 (m, 1H), 7.53 (s, 1H), 7.40-7.49 (m, 2H), 7.22-7.28 (m, 2H), 3.92-3.99 (m, 2H), 2.38 (s, 3H); ES-MS m/z 558.3 (MH)+; HPLC RT (Method A) 2.64 min.

Provenance & Evidence