Hydrochloric Acid → 3-[3-(3-{[(Methylamino)carbonyl]amino]phenyl)imidazo[1,2-b]pyridazin-7-yl]benzoic acid

Participants

Reaction Steps

Lithium hydroxide, monohydrate (89 mg, 2.1 mmol) was added to a mixture of methyl 3-[3-(3-{[(methylamino)carbonyl]amino}phenyl)imidazo[1,2-b]pyridazin-7-yl]benzoate (0.17 g, 0.43 mmol) in methanol (4.0 mL)/THF (2.0 mL)/water (1 mL) and then the reaction was stirred at r.t. for 4 h. The mixture was adjusted with conc. HCl to PH˜3. The volatiles were removed under reduced pressure to provide the crude product which was directly used in the next step without further purification. LCMS (M+H)+: m/z=388.1

Provenance & Evidence