反应详情

To a solution of (S)-1-(5-fluoropyrimidin-2-yl)-6-methyl-4,5,6,7-tetrahydro-1H-[1,2,3]triazolo[4,5-c]pyridinium chloride (0.575 g, 2.12 mmol) in CH2Cl2 (10 mL) was added triethylamine (1.18 mL, 8.50 mmol) followed by 2-fluoro-3-(trifluoromethyl)benzoyl chloride (0.625 g, 2.76 mmol). After stirring for 30 min at rt, sat NaHCO3 (20 mL) was added. The organic layer was separated and the water layer was extracted with CH2Cl2 two times. The combined organic layers were dried over anhydrous MgSO4, filtered and concentrated. Chromatography on silica gel (0-100% ethyl acetatehexanes) provided the desired product as a white solid (0.837 g, 93%). MS (ESI) mass calcd. C18H13F5N6O, 424.11. m/z found, 425.1 [M+H]+. 1H NMR (500 MHz, CDCl3) δ 8.75 (s, 2H), 7.81-7.49 (m, 2H), 7.46-7.30 (m, 1H), 5.92-5.66 (m, 0.5H), 5.68-5.55 (m, 0.5H), 4.81-4.54 (m, 1H), 4.37 (d, J=16.9 Hz, 0.5H), 4.30-4.18 (m, 0.5H), 3.58-3.40 (m, 0.8H), 3.34-3.12 (m, 1.2H), 1.43-1.12 (m, 3H).

1. additionwas added
2. customThe organic layer was separated
3. extractionthe water layer was extracted with CH2Cl2 two times
4. dry with materialThe combined organic layers were dried over anhydrous MgSO4
5. filtrationfiltered
6. concentrationconcentrated