反应详情

温度

80 °C

A solution of 1-(5-(4-(bis(4-methoxybenzyl)amino)-6-methyl-1,3,5-triazin-2-yl)-6-(5-fluoro-6-methoxypyridin-3-ylamino)pyridin-3-yl)ethanone (Example 271; 332 mg, 0.54 mmol) in TFA (3 mL) was treated with TfOH (0.1 mL). The solution was heated at 80° C. in an oil bath for 4 h, allowed to cool to room temperature, and concentrated. The dark residue was treated with a few ice cubes followed by sat. NaHCO3 while rapidly stirring. The precipitated yellow solid was collected by filtration and rinsed with water (5 mL). The yellow solid was purified by flash chromatography eluting with 1-15% MeOH in DCM to give 1-(5-(4-amino-6-methyl-1,3,5-triazin-2-yl)-6-(5-fluoro-6-methoxypyridin-3-ylamino)pyridin-3-yl)ethanone (140 mg, 69%) as a bright yellow crystalline solid. m/z (ESI, +ve ion) 460 (M+H)+. 1H NMR (400 MHz, d6-DMSO) δ 12.38 (br., 1H); 9.26 (d, J=2.2 Hz, 1H); 8.96 (d, J=2.2 Hz, 1H); 8.42 (s, 1H); 8.35 (dd, J=12.3, 1.6 Hz, 1H); 8.00 (s, 1H); 7.83 (s, 1H); 3.96 (s, 3H); 2.57 (s, 3H); 2.46 (s, 3H).

1. temperatureto cool to room temperature
2. concentrationconcentrated
3. additionThe dark residue was treated with a few ice cubes
4. filtrationThe precipitated yellow solid was collected by filtration
5. washrinsed with water (5 mL)
6. customThe yellow solid was purified by flash chromatography
7. washeluting with 1-15% MeOH in DCM