反应详情

温度

0 °C

A solution of 7-(methyloxy)-3,4-dihydro-1,8-naphthyridin-2(1H)-one (4.974 g, 27.9 mmol) in DMF (100 ml) at 0° C. under argon was treated with sodium hydride (60%, 1.340 g, 33.5 mmol) and allowed to stir at 0° C. for 20 min. The reaction mixture was then treated with (2S)-2-oxiranylmethyl 3-nitrobenzenesulfonate (7.60 g, 29.3 mmol), stirred at 0° C. and then allowed warm to rt and stirred at rt for 1 h. Water (5 ml) was then added. Reaction was evaporated, saturated aqueous bicarbonate (500 ml) was then added and the mixture was extracted with DCM (3×500 ml). The combined organic solvents were then dried (MgSO4), filtered and evaporated to give the crude product.

1. stirringstirred at 0° C.
2. temperatureallowed warm to rt
3. stirringstirred at rt for 1 h
4. customReaction
5. customwas evaporated
6. additionsaturated aqueous bicarbonate (500 ml) was then added
7. extractionthe mixture was extracted with DCM (3×500 ml)
8. dry with materialThe combined organic solvents were then dried (MgSO4)
9. filtrationfiltered
10. customevaporated