Trifluoroacetic acid → 1-(2-(4-aminopiperidin-1-yl)ethyl)-7-cyano-1,5-naphthyridin-2(1H)-one

Participants

Reaction Steps

To a solution of 1,1-dimethylethyl {1-[2-(7-cyano-2-oxo-1,5-naphthyridin-1(2H)-yl)ethyl]-4-piperidinyl}carbamate (0.411 g, 1.03 mmol) in DCM (16 ml) was added TFA (9 ml) and the reaction stirred at rt for 1 h. The solution was evaporated, dissolved in MeOH and passed through a column of Amberlyst A21 basic resin. The fractions containing the desired product were evaporated and the residue was subjected to column chromatography on silica gel using a DCM:MeOH:aq NH3 gradient to provide the desired compound (0.214 g, 70%).

Provenance & Evidence