Tetrahydrofuran → methyl 2-({[6-(3-{[(1,3-dimethyl-1H-pyrazol-5-yl)carbonyl]amino}-4-methylphenoxy)imidazo[1,2-b]pyridazin-2-yl]amino}carbonyl)cyclopropanecarboxylate

Participants

Reaction Steps

In the same manner as in Example 279 and using 2-(methoxycarbonyl)cyclopropanecarboxylic acid (140 mg, 0.78 mmol), tetrahydrofuran (1.5 mL), N,N-dimethylformamide (1 drop), oxalyl chloride (69 μL, 0.8 mmol), N-{5-[(2-aminoimidazo[1,2-b]pyridazin-6-yl)oxy]-2-methylphenyl}-1,3-dimethyl-1H-pyrazole-5-carboxamide hydrochloride (250 mg, 0.6 mmol) and N,N-dimethylacetamide (5 mL) as starting materials, the title compound (75 mg, 25%) was obtained as a white solid.

Provenance & Evidence