反应详情

N-[[(5S)-3-[3-Fluoro-4-[tetrahydro-1,1-dioxido-2-(2-propenyl)-2H-1,2-thiazin-4-yl]phenyl]-2-oxo-5-oxazolidinyl]methyl]acetamide (350 mg, 0.82 mmol), 10% palladium on carbon (500 mg), boron trifluoride etherate (179 mg, 1.26 mmol) and absolute ethanol (8 ml) are heated under reflux for 5 hr. Upon cooling the suspension is filtered and evaporated. Chromatography over silica gel (55 g) eluting with 2-6% methanol-chloroform affords the title compound as a foam (186 mg, 59%). HRMS(FAB): calcd for m+H=386.1186; Found: 386.1194.

1. temperatureunder reflux for 5 hr
2. temperatureUpon cooling the suspension
3. filtrationis filtered
4. customevaporated
5. washChromatography over silica gel (55 g) eluting with 2-6% methanol-chloroform