反应详情

温度

70 °C

A solution of 5-bromo-6-chloro-2-(4-(morpholine-4-carbonyl)phenylamino)nicotinamide (200 mg, 0.454 mmol) in piperidine (1 ml) was stirred at rt for 2 h and heated to 70° C. for 1 h. The mixture was diluted with CH2Cl2, washed with water three times, and concentrated. The residue was purified by chromatography (ISCO, hexane/ethyl acetate gradient, 40 g silica gel column) to give 210 mg of 5-bromo-2-(4-(morpholine-4-carbonyl)phenylamino)-6-(piperidin-1-yl)nicotinamide as a white solid. LCMS: (M+H)+=488.02, 489.96 (Br pattern). 1H NMR (400 MHz, CDCl3-MIX) δ ppm 11.11 (1H, s), 7.89 (1H, s), 7.76 (2H, d, J=8.79 Hz), 7.38 (2H, d, J=8.79 Hz), 3.72 (8H, br. s.), 3.46-3.52 (4H, m), 1.73 (6 H, m).

1. washwashed with water three times
2. concentrationconcentrated
3. customThe residue was purified by chromatography (ISCO, hexane/ethyl acetate gradient, 40 g silica gel column)