反应详情

温度

100 °C

A mixture of 2-chloro-N-methyl-5-(trifluoromethyl)pyrimidin-4-amine (80 mg, 0.38 mmol), 2-methoxy-4-(1H-1,2,4-triazol-1-yl)aniline (72 mg, 0.38 mmol) and p-toluene sulphonic acid (72 mg, 0.38 mmol) in dioxane (2 mL) was heated at 100° C. for 1 h. The mixture was cooled and filtered. The solid was partitioned between dichloromethane (10 mL) and saturated aqueous NaHCO3 (10 mL) and the product was extracted into dichloromethane (3×10 mL). The combined organics were passed through a phase separation cartridge and the solvent removed under reduced pressure. Purification of the residue via silica gel column chromatography (0-100% ethyl acetate/isohexane) afforded a residue that was triturated with methanol/diethyl ether yielding N2-(2-methoxy-4-(1H-1,2,4-triazol-1-yl)phenyl)-N4-methyl-5-(trifluoromethyl)pyrimidine-2,4-diamine as a white solid (34.5 mg, 25%). LCMS (10 cm_ESCI_Formic_MeCN): [MH+]=366 at 3.13 min. 1H NMR (400 MHz, DMSO): δ 9.29 (s, 1H); 8.33 (d, J=8.7, 1H); 8.24-8.15 (m, 3H); 7.53 (d, J=2.4, 1H); 7.45 (dd, J=8.7, 2.4, 1H); 7.23 (d, J=5.2, 1H); 3.97 (s, 3H); 2.92 (d, J=4.4, 3H).

1. temperatureThe mixture was cooled
2. filtrationfiltered
3. customThe solid was partitioned between dichloromethane (10 mL) and saturated aqueous NaHCO3 (10 mL)
4. extractionthe product was extracted into dichloromethane (3×10 mL)
5. customThe combined organics were passed through a phase separation cartridge
6. customthe solvent removed under reduced pressure
7. customPurification of the residue via silica gel column chromatography (0-100% ethyl acetate/isohexane)
8. customafforded a residue that
9. customwas triturated with methanol/diethyl ether