Abstract
The syntheses of oligosaccharide-branched cyclodextrins, which showed potential binding to the saccharide-interacting protein, lectin, were investigated. The transglycosylations to Fmoc-Asn(GlcNAc)-NH-cyclodextrin by endo- β - N -acetylglucosaminidase of Mucor hiemalis (Endo-M) gave three kinds of natural oligosaccharide-branched cyclodextrins ( 7–9 ) in satisfactory yields. The association constant of the high-mannose type oligosaccharide-branched CD ( 7 ) with immobilized concanavalin A was found to be approximately 1.6 × 10 7 M −1 using an optical biosensor. The transglycosylations by Endo-M gave three kinds of natural oligosaccharide-branched cyclodextrins.
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