反应详情

温度

60 °C

A round bottom flask was charged with (R)-2-(3-(aminomethyl)-5-fluoro-6-(5-isopropoxy-1H-pyrazol-3-ylamino)pyridin-2-ylamino)-2-(4-fluorophenyl)ethanol (Example 13; 0.10 g, 0.24 mmol), methanesulfonic acid loaded TFP resin (0.9 mmol/g loading, 0.24 mmol), DIEA (0.062 g, 0.48 mmol), DMAP (0.032 g, 0.26 mmol), and THF (5 ml). The resulting suspension was shaken vigorously at 60° C. for 8 hrs and filtered. The resulting resin was washed with a THF-DCM solution (1:1, 3×5 ml for 30 min. each). The resulting organic layers were combined and concentrated. The resulting solid was purified by reverse-phase column chromatography (5-50% CH3CN in H2O over 400 ml) to give the title compound (0.075 g, 63%). 1H NMR (400 MHz, CD3OD) δ 7.48-7.45 (m, 2H), 7.20 (d, J=10.9 Hz, 1H), 7.05-7.01 (m, 2H), 5.30 (s, 1H), 5.04-5.01 (m, 1H), 4.56-4.53 (m, 1H), 4.20 (d, J=14.4 Hz, 1H), 4.12 (d, J=14.4 Hz, 1H), 3.86-3.73 (m, 2H), 3.01 (s, 3H), 1.32 (d, J=6.0 Hz, 3H). MS: Calcd.: 496. Found: [M+H]+ 497.

1. filtrationfiltered
2. washThe resulting resin was washed with a THF-DCM solution (1:1, 3×5 ml for 30 min. each)
3. concentrationconcentrated
4. customThe resulting solid was purified by reverse-phase column chromatography (5-50% CH3CN in H2O over 400 ml)