Hydrochloric Acid → 5-Chloro-2-fluoro-4-{[3-pyridazin-4-yl-4'-(trifluoromethyl)biphenyl-4-yl]oxy}-N-pyrimidin-2-ylbenzenesulfonamide

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Reaction Steps

5-Chloro-N-(2,4-dimethoxybenzyl)-2-fluoro-4-{[3-pyridazin-4-yl-4′-(trifluoromethyl)biphenyl-4-yl]oxy}-N-pyrimidin-2-ylbenzenesulfonamide (Preparation 48) 356 mg, 0.47 mmol) was dissolved in 1,4-dioxane (1.5 mL) and a 4M solution of hydrogen chloride in 1,4-dioxane (2.4 mL) added. The mixture was stirred at room temperature for 18 hours. The reaction mixture was concentrated in vacuo and the resulting residue purified by reverse phase preparative HPLC (Trilution method) to afford the title compound as a white solid (120 mg, 42%).

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