Potassium Carbonate → N-[6-(3-{[(1,3-dimethyl-1H-pyrazol-5-yl)methyl]amino}-4-methylphenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide

Participants

Reaction Conditions

Reaction Steps

A mixture of N-(6-iodoimidazo[1,2-b]pyridazin-2-yl)cyclopropanecarboxamide (210 mg, 0.64 mmol), 3-{[(1,3-dimethyl-1H-pyrazol-5-yl)methyl]amino}-4-methylphenol (220 mg, 0.96 mmol), potassium carbonate (220 mg, 1.6 mmol) and N,N-dimethylformamide (1.5 mL) was stirred under microwave irradiation at 150° C. for 40 min. The solvent was evaporated under reduced pressure, ethyl acetate/tetrahydrofuran and water were added to the residue, the aqueous layer was extracted with ethyl acetate/tetrahydrofuran (×4). Combined organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and filtrated. The filtrate was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (methanol/ethyl acetate=0/100→5/95) to give the title compound (200 mg, 72%) as a brown solid.

Provenance & Evidence