反应详情

A 48 mL tube was charged with sodium 2-chloro-2,2-difluoroacetate (0.15 g, 1.0 mmol), 4-((6-(3-methylisoxazol-5-yl)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methoxy)quinolin-7-ol hydrobromide (0.200 g, 0.44 mmol), cesium carbonate (0.43 g, 1.3 mmol), and DMF (1.7 ml, 22 mmol), flushed with argon, sealed, then placed in a 100° C. oil bath for 5 hours. The reaction mixture was concentrated, then diluted with DCM and chloroform. This was washed with water, sat. NaHCO3, and brine, then dried with MgSO4, filtered, and concentrated to give a brown oil. This was purified by HPLC to give 7-(difluoromethoxy)-4-((6-(3-methylisoxazol-5-yl)-[1,2,4]triazolo[4,3-a]pyridin-3-yl)methoxy)quinoline (0.025 g, 13% yield) as the formic acid salt. MS (ESI pos. ion) m/z: 424 (MH+). Calc'd exact mass for C21H15F2N5O3: 423.

1. customflushed with argon
2. customsealed
3. customplaced in a 100° C.
4. customfor 5 hours
5. concentrationThe reaction mixture was concentrated
6. additiondiluted with DCM and chloroform
7. washThis was washed with water, sat. NaHCO3, and brine
8. dry with materialdried with MgSO4
9. filtrationfiltered
10. concentrationconcentrated
11. customto give a brown oil
12. customThis was purified by HPLC