Dimethyl Sulfoxide → HCID 57505480, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of N-(6-iodoimidazo[1,2-b]pyridazin-2-yl)cyclopropanecarboxamide (300 mg, 0.91 mmol), N-(5-hydroxy-2-methylphenyl)-1,4-dimethyl-4,5-dihydro-1H-pyrazole-3-carboxamide (290 mg, 1.2 mmol), cesium carbonate (600 mg, 1.8 mmol) and dimethyl sulfoxide (2 mL) was stirred at 100° C. for 6 hr. Ethyl acetate/tetrahydrofuran and water were added to the reaction mixture, and 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 (ethyl acetate/hexane=40/60→100/0) to give the title compound (300 mg, 73%) as a white solid.

Provenance & Evidence