Dimethylformamide → N-[3-({2-[(cyclopropylcarbonyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)phenyl]-5-methyl-1-phenyl-1H-pyrazole-3-carboxamide

Participants

Reaction Steps

Using 5-methyl-1-phenyl-1H-pyrazole-3-carboxylic acid (294 mg, 1.45 mmol), tetrahydrofuran (3.0 mL), N,N-dimethylformamide (30 μL, 0.39 mmol), oxalyl chloride (127 μL, 1.45 mmol), N-[6-(4-aminophenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide (300 mg, 0.97 mmol) and N,N-dimethylacetamide (6.0 mL), and in the same manner as in Example 255, the title compound (317 mg, 66%) was obtained as a white powder.

Provenance & Evidence