2,4-Difluorobenzenesulfonyl Chloride → HCID 59860190, compound

Participants

Reaction Steps

A solution of 5-[4-(4-pyridinyl)-6-quinolinyl]-3-pyridinamine (82 mg, 0.27 mmol) in anhydrous pyridine (2.0 ml) was treated with neat 2,4-difluorobenzenesulfonyl chloride in one portion. The reaction was stirred at room temperature for 30 minutes then was purified directly by prep-HPLC. The combined, desired fractions were evaporated under reduced pressure to remove organic solvents then diluted with small portions of brine and saturated aqueous sodium bicarbonate. The basic solution was extracted with ethyl acetate then the extracts were dried over anhydrous sodium sulfate and evaporated under reduced pressure. The resulting colorless film was crystallized from methylene chloride and diethyl ether. The solids were collected by filtration, rinsed with diethyl ether then vacuum dried to afford the title compound (219 mg, 48%) as a white solid. MS(ES)+ m/e 475 [M+H]+.

Provenance & Evidence