Hydrochloric Acid → 6-Butyl-5-(4-cyclohexyloxy-phenyl)-pyridazine-3-carboxylic acid (4-fluoro-piperidin-4-ylmethyl)-amide dihydrochloride

Participants

Reaction Steps

To a solution of 4-({[6-butyl-5-(4-cyclohexyloxy-phenyl)-pyridazine-3-carbonyl]-amino}-methyl)-4-fluoro-piperidine-1-carboxylic acid tert-butyl ester (70 mg) in DCM (2 mL) was added 4 N HCl in dioxane (1.0 mL), and the reaction was stirred for 1 h. The volatiles were removed under reduced pressure, and the residue was triturated with anhydrous ethyl ether and dried under high vacuum to provide 6-butyl-5-(4-cyclohexyloxy-phenyl)-pyridazine-3-carboxylic acid (4-fluoro-piperidin-4-ylmethyl)-amide dihydrochloride.

Provenance & Evidence