反应详情

Into a reaction flask was added 3-[3-({4-[(3-bromo-5-methoxybenzyl)amino]-5-chloropyrimidin-2-yl}amino)phenyl]propan-1-ol (2.70 g, 5.65 mmol), methylene chloride (30 mL), and a solution of boron tribromide in methylene chloride (17.0 mL, 17.0 mmol, 1.0 M). The mixture was stirred at rt overnight. The resultant mixture was cooled in dry ice when NaHCO3 (saturated aqueous solution) was added. After removal of the organic solvent, the aqueous layer was extracted with methylene chloride twice. The combined organic layers were washed with water and brine successively, then dried (Na2SO4), filtered, and concentrated to give the desired product (2.97 g, 100%). LCMS for C20H19Br2ClN4O (M+H)+: m/z=526.9, 528.8.

1. additionwas added
2. customAfter removal of the organic solvent
3. extractionthe aqueous layer was extracted with methylene chloride twice
4. washThe combined organic layers were washed with water and brine successively
5. dry with materialdried (Na2SO4)
6. filtrationfiltered
7. concentrationconcentrated