Hydrogen chloride-ethyl acetate → 1-(2-(4-((2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)piperidin-1-yl)ethyl)-1,7-naphthyridin-2(1H)-one hydrochloride

Participants

Reaction Steps

To 0.15 g of tert-butyl (2,3-dihydro-1,4-benzodioxin-6-ylmethyl)(1-(2-(2-oxo-1,7-naphthyridin-1(2H)-yl)ethyl)piperidin-4-yl)carbamate, 8 mL of a 4 mol/L hydrogen chloride/ethyl acetate solution was added, the mixture was reacted at room temperature for 21 hours, and the solvent was distilled off under reduced pressure. Ethanol was added to the resultant residue, the solvent was distilled off under reduced pressure, ethyl acetate was then added to the resultant residue, and the solid was filtered off to obtain 0.15 g of 1-(2-(4-((2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)piperidin-1-yl)ethyl)-1,7-naphthyridin-2(1H)-one hydrochloride as a yellow solid.

Provenance & Evidence