反应详情

To a 50 mL round-bottomed flask was added 3-bromo-2-chloropyridine (4.1292 g, 21.46 mmol), 4-(pyridin-2-ylamino)phenol (4.7912 g, 25.75 mmol), and cesium carbonate (2.082 mL, 25.75 mmol) in dimethyl sulfoxide at 80° C. to stir. Reaction was monitored by LCMS to completion. The reaction mixture was diluted with water (15 mL) and extracted with DCM (3×10 mL). The organic extract was washed with water (2×10 mL), satd sodium chloride solution (2×10 mL), dried with magnesium sulfalte, filtered, and concentrated. The crude product was adsorbed onto a plug of silica gel and chromatographed through a Biotage™ pre-packed silica gel column (40M), eluting with a gradient of 0.5% to 4% methanol in DCM, to provide N-(4-(3-bromopyridin-2-yloxy)phenyl)pyridin-2-amine. MS (ESI, pos. ion) m/z: 343.0 (M+1). IC50 (uM) 0.96.

1. customReaction
2. extractionextracted with DCM (3×10 mL)
3. extractionThe organic extract
4. washwas washed with water (2×10 mL), satd sodium chloride solution (2×10 mL)
5. dry with materialdried with magnesium sulfalte
6. filtrationfiltered
7. concentrationconcentrated
8. customchromatographed through a Biotage™ pre-packed silica gel column (40M)
9. washeluting with a gradient of 0.5% to 4% methanol in DCM