Hydrochloric Acid → 5-Chloro-2-fluoro-4-({3-[2-(piperazin-1-yl)pyridin-4-yl]-4'-(trifluoromethyl)biphenyl-4-yl}oxy)-N-(pyrimidin-4-yl)benzenesulfonamide hydrochloride salt

Participants

Reaction Steps

A 4M solution of hydrogen chloride in 1,4-dioxane (10 mL) was added to a solution of tert-butyl 4-(4-(4-(2-chloro-4-(N-(2,4-dimethoxybenzyl)-N-(pyrimidin-4-yl)sulfamoyl)-5-fluorophenoxy)-4′-(trifluoromethyl)biphenyl-3-yl)pyridin-2-yl)piperazine-1-carboxylate (Preparation 109, 310 mg, 0.332 mmol) in methanol (2 mL). The reaction mixture was stirred at room temperature for 3 hours and then concentrated in vacuo. The residue was purified by reverse phase chromatography (acetonitrile/water with 0.1% formic acid) to afford the title compound (196 mg, 82%) as a white solid.

Provenance & Evidence