反应详情

A mixture of (S)-N-[[3-[3-fluoro-4-(1-piperazinyl)phenyl]-2-oxo-5oxazolidinyl]methyl]acetamide (0.200 g, 0.595 mmol), 1-(2-chloroethyl)piperidine monohydrochloride (0.131 g, 0.714 mmol) and potassium carbonate (0.493 g, 3.57 mmol) in acetonitrile (12 mL) was heated to reflux for 1.0 h. The reaction mixture was cooled to ambient temperature and concentrated in vacuo. The residue was triturated with dichloromethane, the solids filtered off, and the filtrate concentrated in vacuo to give the crude product (0.308 g). This crude material was chromatographed over silica gel (5 g), eluting with 5% and then 10% methanol/chloroform, to afford, after concentration of appropriate fractions, 0.192 g (72%) of the title compound as an off-white solid with mp 169°-170° C.

1. temperaturewas heated
2. temperatureto reflux for 1.0 h
3. concentrationconcentrated in vacuo
4. customThe residue was triturated with dichloromethane
5. filtrationthe solids filtered off
6. concentrationthe filtrate concentrated in vacuo
7. customto give the crude product (0.308 g)
8. customThis crude material was chromatographed over silica gel (5 g)
9. washeluting with 5%
10. custom10% methanol/chloroform, to afford