Water → (5R)-3-[3-Fluoro-4-(4-methyl-1H-imidazol-1-yl)phenyl]-5-(azidomethyl)oxazolidin-2-one

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

Sodium azide (0.596 g, 9.08 mmol) and 18-crown-6 (0.025 g, 0.095 mmol) were added to a solution of (5R)-3-[3-fluoro-4-(4-methyl-1H-imidazol-1-yl)phenyl]-2-oxo-1,3-oxazolidin-5-ylmethyl methanesulfonate (WO 01/81350) (3.161 g, 8.56 mmol) in DMF (8.5 ml). The reaction mixture was heated to 90° C. under an atmosphere of nitrogen for 19 h. It was poured into a mixture of ethyl acetate and water and was extracted three times with ethyl acetate. The combined organic layers were washed once with brine, dried over sodium sulfate, filtered and the solvent was removed under vacuum to give 1.94 g of product as a white solid.

Herkunft & Nachweise