反应详情

温度

50 °C

To a 2 dram vial was added N1-(6-chloroimidazo[1,2-b]pyridazin-8-yl)benzene-1,4-diamine (0.078 g, 0.3 mmol, prepared as described in Example XV1, step 1a), 1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxylic acid (0.10 g, 0.45 mmol, prepared as described in Example XVII, step 1e2), EDCI (0.086 g, 0.45 mmol), HOBt (0.061 g, 0.45 mmol), TEA (0.12 ml, 0.9 mmol), DMF (0.8 ml) and CH3CN (1.5 ml). The reaction was allowed to stir around 50° C. for 12 hrs. Upon cooling, the solvent was removed in vacuo and diluted with methanol (2 ml). The solution was purified by HPLC (20-100% methanol gradient), which yielded 0.014 g of the title compound as a TFA salt. 1H NMR (400 MHz, CHLOROFORM-D) δ ppm 11.88 (1H, s), 8.70 (1H, dd, J=7.12, 2.03 Hz), 7.71-7.91 (3H, m), 7.67 (1H, s), 7.50-7.63 (1H, m), 7.10-7.43 (5H, m), 6.64 (1H, s), 6.56 (1H, t, J=7.12 Hz). LC/MS, m/e 475 (M+1). HPLC Rt, 2.82 min. YMC ODSC18 column (4.6×50 mm). 0%-100% B. Solvent B: (90% MeOH, 10% H2O, 0.1% TFA). Solvent A: (10% MeOH, 90% H2O, 0.1% TFA). Gradient, start % B=0, final % B=100, gradient time 4 min, hold at 100% B 1 min, flow rate 4 mL/min.

1. temperatureUpon cooling
2. customthe solvent was removed in vacuo
3. additiondiluted with methanol (2 ml)
4. customThe solution was purified by HPLC (20-100% methanol gradient), which