Hydrochloric Acid → HCID 67373939, compound

Participants

Reaction Steps

To a solution of 4-{6-butyl-5-[4-cyclohexyloxy-3-(2-methyl-2H-tetrazol-5-yl)-phenyl]-pyridazin-3-yloxy}-piperidine-1-carboxylic acid tert-butyl ester (Example 70, 0.156 mmol, 92.1 mg) in DCM (1.5 mL) was added 4 N HCl in dioxane (0.5 mL) and the reaction mixture was stirred for 1 h. The organic solvents were removed in vacuo and the residue was triturated with anhydrous diethyl ether and hexanes. The yellow solid was dried overnight under high vacuum to give 3-butyl-4-[4-cyclohexyloxy-3-(2-methyl-2H-tetrazol-5-yl)-phenyl]-6-(piperidin-4-yloxy)-pyridazine dihydrochloride (65.8 mg).

Provenance & Evidence