Hydrochloric Acid → 3-butyl-4-{4-cyclohexyloxy-3-[1-(2-methoxy-ethyl)-1H-pyrazol-4-yl]-phenyl}-6-(piperidin-4-yloxy)-pyridazine dihydrochloride

Participants

Reaction Steps

To a solution of 4-(6-butyl-5-{4-cyclohexyloxy-3-[1-(2-methoxy-ethyl)-1H-pyrazol-4-yl]-phenyl}-pyridazin-3-yloxy)-piperidine-1-carboxylic acid tert-butyl ester (0.107 mmol, 68 mg) in DCM (1.5 mL) was added 4 N HCl in dioxane (0.5 mL) and the reaction mixture was stirred for 40 min. The organic solvents were removed in vacuo and the residue was triturated with anhydrous diethyl ether. The yellow solid was dried overnight under high vacuum to give 3-butyl-4-{4-cyclohexyloxy-3-[1-(2-methoxy-ethyl)-1H-pyrazol-4-yl]-phenyl}-6-(piperidin-4-yloxy)-pyridazine dihydrochloride (59.5 mg).

Provenance & Evidence