反应详情

温度

80 °C

To a solution of 4-[2-(pteridin-4-ylamino)ethyl]phenol (270 mg, 1.0 mmol) and dry DMSO (5 mL) was added 2-chloro-5-trifluoromethylpyridine (155 mg, 0.85 mmol) and K2CO3 (280 mg, 2.0 mmol). This mixture was heated to 80° C. for 3 h, cooled to ambient temperature, poured into H2O (20 mL) and extracted with CH2Cl2 (20 mL). The CH2Cl2 solution was washed with H2O (2×10 mL), dried with Na2SO4, and the solution was filtered. The solution was concentrated in vacuo, redissolved in a minimum volume of CH2Cl2 and treated with hexane to precipitate a solid. The solid was collected by filtration and dried under vacuum to afford pteridin-4-yl-{2-[4-(5-trifluoromethylpyridin-2-yloxy)-phenyl]-ethyl}-amine (310 mg) as an off-white solid: mp 147-150° C.; 1H NMR (300 MHz, CDCl3) δ 9.04 (d, J=1.9 Hz, 1H), 8.85 (s, 1H), 8.64 (d, J=1.9 Hz, 1H), 8.35 (d, J=5.2 Hz, 1H), 7.40-7.29 (m, 3H), 7.22 (dd, J=5.2, 0.8 Hz, 1H), 7.19-7.05 (m, 3H), 4.01 (dd, J=13.3, 7.0 Hz, 2H), 3.10 (t, J=7.1 Hz, 2H); ESIMS m/z 413 ([M+H]+).

1. temperaturecooled to ambient temperature
2. extractionextracted with CH2Cl2 (20 mL)
3. washThe CH2Cl2 solution was washed with H2O (2×10 mL)
4. dry with materialdried with Na2SO4
5. filtrationthe solution was filtered
6. concentrationThe solution was concentrated in vacuo
7. dissolutionredissolved in a minimum volume of CH2Cl2
8. additiontreated with hexane
9. customto precipitate a solid
10. filtrationThe solid was collected by filtration
11. customdried under vacuum