2,5-Dimethyl-2H-pyrazole-3-carbonyl chloride → N-(5-{[2-(acetylamino)imidazo[1,2-b]pyridazin-6-yl]oxy}-2-methylphenyl)-1,3-dimethyl-1H-pyrazole-5-carboxamide

Participants

Reaction Steps

In the same manner as in Example 264 and using N-[6-(3-amino-4-methylphenoxy)imidazo[1,2-b]pyridazin-2-yl]acetamide (840 mg, 2.8 mmol), 1,3-dimethyl-1H-pyrazole-5-carbonylchloride (540 mg, 3.4 mmol) and N,N-dimethylacetamide (35 mL), the title compound (910 mg, 77%) was obtained as a white solid.

Provenance & Evidence