Hydrogen chloride-ethyl acetate → 1-(2-(4-((2,3-dihydro-1,4-dioxino[2,3-c]pyridin-7-yl)methylamino)piperidin-1-yl)ethyl)-7-cyanoquinoxalin-2(1H)-one hydrochloride

Participants

Reaction Steps

To 5 mL of a chloroform solution containing 40 mg of 1-(2-(4-((2,3-dihydro-1,4-dioxino[2,3-c]pyridin-7-yl)methylamino)piperidin-1-yl)ethyl)-7-cyanoquinoxalin-2(1H)-one, 0.5 mL of 4 mol/L hydrogen chloride/ethyl acetate and 5 mL of chloroform were added, and stirred at room temperature for 10 min. The solvent was removed under reduced pressure, ethyl acetate was added, and the resulting solid was filtered to give 33 mg of 1-(2-(4-((2,3-dihydro-1,4-dioxino[2,3-c]pyridin-7-yl)methylamino)piperidin-1-yl)ethyl)-7-cyanoquinoxalin-2(1H)-one hydrochloride as a dark brown powder.

Provenance & Evidence