Potassium Carbonate → 3-Cyano-4-[(3-pyridazin-4-ylbiphenyl-4-yl)oxy]-N-1,2,4-thiadiazol-5-ylbenzenesulfonamide

Participants

Reaction Conditions

Reaction Steps

3-Pyridazin-4-ylbiphenyl-4-ol (Preparation 4, 50 mg, 0.2 mmol) and 3-cyano-4-fluoro-N-(1,2,4-thiadiazol-5-yl)benzenesulfonamide (Preparation 47, 50 mg, 0.2 mmol) were dissolved in dimethylsulfoxide (2 mL). Potassium carbonate (83 mg, 0.6 mmol) was added and the reaction heated to 90° C. for 16 hours. The crude material was then purified by reverse phase column chromatography (ISCO™, 4 g, C18, 20:1 water:acetonitrile to 3:2 water acetonitrile). The appropriate fractions were combined and concentrated in vacuo to afford the title compound as an off white solid (25 mg, 24%).

Provenance & Evidence