反应详情

温度

145 °C

A mixture of 3,6-dichloro-N-(5-isopropoxy-1H-pyrazol-3-yl)-5-nitropyridin-2-amine (Method 27, 0.25 g, 0.75 mmol), (s)-1-(4-fluoro-phenyl)-ethylamine (0.13 g, 0.90 mmol) and DIEA (0.16 ml, 0.94 mmol) in n-BuOH (3 ml) was heated in a sealed tube at 145° C. for 2 hours. The solvent was removed under reduced pressure and the residue was purified by column chromatography (hexane-EtOAc=1:1) to give the title compound as a yellow solid (0.32 g, 98%). 1H NMR (400 MHz) δ 12.22 & 11.40 (s, 1H), 9.74 & 9.37 (s, 1H), 8.93 (d, J=7.6 Hz, 1H), 8.33 & 8.27 (s, 1H), 7.34 & 7.27 (m, 2H), 7.12 & 7.05 (m, 2H), 5.75 & 5.62 (s, 1H), 5.35 & 5.25 (m, 1H), 4.66 & 4.03 (m, 1H), 1.55 (d, J=6.4 Hz, 3H), 1.29 (d, J=6.0 Hz, 6H). MS: Calcd.: 434. Found: [M+H]+ 435.

1. customThe solvent was removed under reduced pressure
2. customthe residue was purified by column chromatography (hexane-EtOAc=1:1)