Trifluoroacetic acid → N-(1H-indazol-5-yl)-N-(8-propyl-8-azabicyclo[3.2.1]oct-3-yl)methanesulfonamide

Participants

Reaction Steps

Trifluoroacetic acid (0.2 ml) was added to a solution of N-(8-propyl-8-azabicyclo[3.2.1]oct-3-yl)-N-(1-tetrahydro-2H-pyran-2-yl-1H-indazol-5-yl)-methanesulfonamide (19 mg, 0.0425 mmol) in dichloromethane (0.8 ml), and the resulting mixture was stirred at room temperature for 1.5 hours. The reaction solution was poured into a saturated aqueous sodium hydrogencarbonate solution and extracted with ethyl acetate, and the extract solution was washed with a saturated aqueous sodium chloride solution, dried over sodium sulfate, and then distilled under reduced pressure to remove the solvent. The residue was purified by a preparative thin-layer chromatography (200×200×0.5 mm, eluent: chloroform/methanol=9/1) to obtain N-(1H-indazol-5-yl)-N-(8-propyl-8-azabicyclo[3.2.1]oct-3-yl)methanesulfonamide (6 mg, 40%).

Provenance & Evidence