Potassium Carbonate → 5-Chloro-N-(2,4-dimethoxybenzyl)-2-fluoro-4-{[3-pyridazin-4-yl-3'-(trifluoromethyl)biphenyl-4-yl]oxy}-N-1,3,4-thiadiazol-2-ylbenzenesulfonamide

Participants

Reaction Steps

To a solution of 5-chloro-N-(2,4-dimethoxybenzyl)-2,4-difluoro-N-1,3,4-thiadiazol-2-ylbenzenesulfonamide (Preparation 16, 219 mg, 0.474 mmol) and 3-pyridazin-4-yl-3′-(trifluoromethyl)biphenyl-4-ol (Preparation 3, 150 mg, 0.474 mmol) in dimethylsulfoxide (5 mL) was added potassium carbonate (196 mg, 1.42 mmol). The reaction mixture was stirred at room temperature for 18 hours. The reaction mixture was quenched with a 1M aqueous solution of sodium hydroxide whereupon a precipitate formed. The solid was collected by filtration, washed with water and freeze dried to afford the title compound as a solid (266 mg, 74%).

Provenance & Evidence