反应详情

A 0.3 M solution of 5-bromo-3-morpholinopyridin-2(1H)-one (1.00 equiv.) in DMF was treated with sodium hydride (1.20 equiv.). The mixture was stirred for 15 min at ambient temperature. Tert-butyl (2-bromoethyl)carbamate (1.20 equiv.) was added. The mixture was stirred at 60° C. for 3 hr. The cooled reaction mixture was diluted with water and extracted with ethyl acetate. The combined organics were washed with saturated aqueous sodium bicarbonate, dried over sodium sulfate, filtered, and concentrated to give tert-butyl (2-(5-bromo-3-morpholino-2-oxopyridin-1(2H)-yl)ethyl)carbamate. LCMS (m/z) (M+H)=402.1/404.1, Rt=0.78 min.

1. stirringThe mixture was stirred at 60° C. for 3 hr
2. customThe cooled reaction mixture
3. extractionextracted with ethyl acetate
4. washThe combined organics were washed with saturated aqueous sodium bicarbonate
5. dry with materialdried over sodium sulfate
6. filtrationfiltered
7. concentrationconcentrated