反应详情

温度

140 °C

1,4-dioxane (0.1 mL, 1.169 mmol) and 2 N HCl (0.219 mL, 0.437 mmol) was added to a mixture of 4-(2-chloro-5-methoxypyridin-3-yl)-6-methyl-1,3,5-triazin-2-amine (110 mg, 0.437 mmol) and 5-amino-2-methoxypyridine (Aldrich, St. Louis, Mo.) (81 mg, 0.656 mmol) in a microwave reaction vessel and the mixture was sealed and heated at 140° C. for 60 min in a Personal Chemistry microwave unit under microwave irradiation. After cooling, the resulting dark mixture was concentrated. Flash column chromatographic purification (short column, SiO2, pure DCM to 5% MeOH in DCM) provided the title compound mixed with starting material. This was washed with methanol several times and finally the solid was recrystallized from MeOH to give 4-(5-methoxy-2-(6-methoxypyridin-3-ylamino)pyridin-3-yl)-6-methyl-1,3,5-triazin-2-amine (21 mg, 0.062 mmol, 14.16% yield) as a yellow-green powder. LCMS (API-ES) m/z 340 (M+H)+; 1H NMR (400 MHz, d6-DMSO) δ 11.47 (s, 1H) 8.52 (d, J=2.74 Hz, 1H) 8.39 (d, J=3.33 Hz, 1H) 8.13-8.18 (m, 1H) 8.12 (d, J=3.13 Hz, 1H) 7.86 (br. s., 1H) 7.73 (br. s., 1H) 6.79 (d, J=8.80 Hz, 1H) 3.83 (s, 3H) 3.82 (s, 3H) 2.44 (s, 3H).

1. customthe mixture was sealed
2. temperatureAfter cooling
3. concentrationthe resulting dark mixture was concentrated
4. customFlash column chromatographic purification (short column, SiO2, pure DCM to 5% MeOH in DCM)