AN EFFICIENT SYNTHESIS OF N-ALLYLGLYCOSYLAMIDES FROM UNPROTECTED CARBOHYDRATES
1996
Synthetic, multivalent, carbohydrate assemblies are important tools in studying the avidity of many naturally occuring lectins for their ligands. This report details a simple, high-yielding three-step procedure to convert unprotected carbohydrates into N-allylglycosides. This method compliments the reductive amination procedure but allows the reducing-end pyranose ring to remain intact. No carbohydrate protecting groups are needed, and the resulting N-allylglycosylamide can be easily linked to other molecules. Two examples of analogs of silyl Lewisx and sulfo Lewisx have been derivatized by this process.
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