Sodium hydride → ((3S)-3-(2,2-difluoroethoxy)pyrrolidin-1-yl) (8-(1,3-oxazol-5-yl)-6-(trifluoromethyl)imidazo[1,2-a]pyridin-3-yl)methanone

Participants

Reaction Steps

((3S)-3-Hydroxypyrrolidin-1-yl) (8-(1,3-oxazol-5-yl)-6-(trifluoromethyl)imidazo[1,2-a]pyridin-3-yl)methanone (205 mg) was dissolved in DMF (5 mL), and 60% sodium hydride (26.9 mg) and 2,2-difluoroethyl trifluoromethanesulfonate (91 μL) were added thereto at 0° C. The reaction mixture was stirred at room temperature for 2 hr, saturated aqueous ammonium chloride solution was added thereto, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane), and the obtained solid was recrystallized from ethyl acetate/hexane to give the title compound (152 mg).

Provenance & Evidence