反应详情

N-(5-Aminoquinolin-6-yl)-3-(quinoxalin-2-yl)propanamide (180 mg, 0.5 mmol) or N-(6-aminoquinolin-5-yl)-3-(quinoxalin-2-yl)propanamide (80 mg, 0.23 mmol) in acetic acid (5 mL or 2 mL, respectively) was heated to 60° C. and stirred for 2 hours. Excess acetic acid was removed under vacuum, and the residue was purified by column chromatography to afford 2-(2-(quinoxalin-2-yl)ethyl)-3H-imidazo[4,5-f]quinoline (150 mg) and 2-(2-(quinoxalin-2-yl)ethyl)-1H-imidazo[4,5-f]quinoline (60 mg). MS (ESI) m/z 325 (M+H+).

1. customExcess acetic acid was removed under vacuum
2. customthe residue was purified by column chromatography