Triethylamine → HCID 46194175, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 3-fluoro-4-(pyrrolo[1,2-b]pyridazin-4-yloxy)-phenylamine (50 mg, 0.206 mmol) and 1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxylic acid (32 mg, 0.137 mmol) dissolved in dimethylformamide (3 mL), HATU (78 mg, 0.206 mmol) and triethylamine (0.05 mL, 0.343 mmol) were sequentially added and heated at 50° C. for 7 hours. The resulting mixture was concentrated and the resulting residue was extracted with dichloromethane and water. After phase separation, the organic layer was washed with sodium chloride aqueous solution, dried with magnesium sulfate, and then filtered. The filtrate was concentrated under reduced pressure. The resulting residue was purified by silica gel chromatography (ethyl acetate:hexane=1:3) to give the target compound as a white solid (16 mg, 0.04 mmol, 25% yield).

Provenance & Evidence