Water → 7-(Methyloxy)-1-[(2R)-2-oxiranylmethyl]-3,4-dihydro-1,8-naphthyridin-2(1H)-one

Participants

Reaction Conditions

Reaction Steps

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) and then then allowed warm slowly to rt and stirred at rt for 1 h. Water (5 ml) was then added. Reaction was evaporated, saturated aqueous NaHCO3 (500 ml) was then added and the mixture was extracted with DCM (3×500 ml). The combined organic solvents were then dried (MgSO4), filtered, evaporated to give the crude product.

Provenance & Evidence