Water → HCID 69481530, compound

Participants

Reaction Steps

(S)-1-(2-Chloro-4-nitro-imidazol-1-yl)-2-methyl-3-(4-phenylpiperidin-1-yl)propan-2-ol prepared in Example 276 (0.703 g, 1.86 mmol) was dissolved in DMF (5 ml). To the solution, sodium hydride (89 mg, 2.23 mmol) was added with cooling on ice-bath followed by stirring at room temperature for 3 hours. To the reaction mixture, water was added. The precipitates were filtered off, purified by silica gel column chromatography (n-hexane/acetone=3/1) and recrystallized from ethyl acetate to afford (S)-2-methyl-6-nitro-2-(4-phenylpiperidin-1-ylmethyl)-2,3-dihydroimidazo[2,1-b]oxazole (0.230 g, yield 36%) as a white powder.

Provenance & Evidence