| 摘要 |
This invention relates to novel derivatives of N-acetyl-3-fluoro-neurminic acid derivatives (I) and preparation thereof. The compound (I) can be synthesized by reacting a solution of alkyl 5-acetamido-2,6-anhydro-4,7,8,9-tetra-O-acetyl-2,3,5-trideoxy-D-glycer o-D-galact o-2-enonate with (i) an inert gas containing fluorine or (ii) acetylhypofluorite obtained by passing the inert gas containing fluorine through a mixture of acetic acid/acetate by passing thereinto, and then removing a solvent and applying the residue through a silica gel column chromatography. |
