4-Fluorobenzenesulfonyl chloride → HCID 178436938, compound

Participants

Reaction Steps

To a solution of 5-ethyl-2-fluoro-4-[3-(4,5,6,7-tetrahydro-1H-imidazo[4,5-c]pyridin-2-yl)-1H-indazol-6-yl]-phenol trihydrobromide salt (Preparation 25, 50 mg, 80 μmol) in DMF (1 mL), was added 4-fluoro-benzenesulfonyl chloride (16 mg, 80 μmol), and DIPEA (56 μL, 320 μmol). The reaction mixture was stirred at room temperature for 4 hours. Saturated aqueous sodium hydrogen carbonate solution (5 mL) was added to the reaction mixture. The resulting solid was collected by filtration and washed with further saturated aqueous sodium hydrogen carbonate solution. The crude material was purified by reverse phase chromatography (Method C) to afford 7 mg of the title compound.

Provenance & Evidence