反应详情

温度

70 °C

A mixture of 3-hydroxy-5-methoxyisonicotinaldehyde (30 mg, 0.20 mmol, 1 eq.), 3-(chloromethyl)-2-(1-isopropyl-1H-pyrazol-5-yl)pyridine hydrochloride (54 mg, 0.20 mmol, 1 eq.), and K2CO3 (110 mg, 0.80 mmol, 4 eq.) in DMF (2.0 mL) was heated at 70° C. for 2 h. The mixture was cooled, filtered, concentrated, and purified on silica gel using a mixture of EtOAc and hexanes to give 3-((2-(1-isopropyl-1H-pyrazol-5-yl)pyridin-3-yl)methoxy)-5-methoxyisonicotinaldehyde (30 mg, 43%) as an off-white solid. 1H NMR (400 MHz, CDCl3) δ 10.46 (s, 1H), 8.65 (dd, J=4.7, 1.1 Hz, 1H), 8.13 (s, 1H), 8.11 (dd, J=7.9, 1.1 Hz, 1H), 7.96 (s, 1H), 7.54 (d, J=1.7 Hz, 1H), 7.37 (dd, J=7.9, 4.8 Hz, 1H), 6.29 (d, J=1.7 Hz, 1H), 5.11 (s, 2H), 4.55 (sep, J=6.6 Hz, 1H), 3.95 (s, 3H), 1.40 (d, J=6.6 Hz, 6H). LRMS (M+H+) m/z 353.1.

1. temperatureThe mixture was cooled
2. filtrationfiltered
3. concentrationconcentrated
4. custompurified on silica gel using
5. additiona mixture of EtOAc and hexanes