反应详情

温度

135 °C

2-Chloro-5-fluoro-6-(5-isopropoxy-1H-pyrazol-3-ylamino)nicotinonitrile (Method 2; 1.4 g, 5.0 mmol) and (S)-1-(4-fluorophenyl)ethanamine (1.0 g, 9.0 mmol) were added to a solution of n-BuOH (8 ml) and DIEA (0.8 g, 6.0 mmol) in a sealed tube. The reaction was heated to 135° C. for 48 hrs, cooled to 25° C., and concentrated. The resulting residue was purified by column chromatography (DCM-MeOH=80:1) to give the title compound (0.90 g, 48%). 1H NMR (400 MHz, CD3OD) δ 7.43 (d, J=10.5 Hz, 1H), 7.39-7.35 (m, 2H), 7.04-6.99 (m, 2H), 5.47 (s, 1H), 5.12-5.11 (m, 1H), 4.60-4.51 (m, 1H), 1.56 (d, J=7.0 Hz, 3H), 1.33-1.30 (m, 6H). MS: Calcd.: 398. Found: [M+H]+ 399.

1. temperaturecooled to 25° C.
2. concentrationconcentrated
3. customThe resulting residue was purified by column chromatography (DCM-MeOH=80:1)