Trifluoroacetic acid → HCID 59397840, compound

Participants

Reaction Steps

To 2 mL of a chloroform solution containing 280 mg of tert-butyl (1-(2-(7-methoxy-5-(pyridin-4-yl)-2-oxoquinoxalin-1(2H)-yl)ethyl)piperidin-4-yl)carbamate, 0.84 mL of trifluoroacetic acid was added, and the mixture was stirred at room temperature for 2 hours. The reaction mixture was concentrated under reduced pressure, chloroform and water were added thereto, the resultant solution was adjusted to pH about 12 with a 2 mol/L aqueous sodium hydroxide solution, and the organic layer was separated. The organic layer was washed with an aqueous saturated sodium chloride solution, and dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure to obtain 230 mg of a yellow oily substance, 1-(2-(4-aminopiperidin-1-yl)ethyl)-7-methoxy-5-(pyridin-4-yl)quinoxalin-2(1H)-one.

Provenance & Evidence