Summary
Thiourea-bridged glycoclusters and glycodendrimers are described in the literature as mimetics of (oligoantennary) oligosaccharides to serve as high-affinity lectin ligands. In extension of this concept, the assembly of different, structurally varied isothiocyanato-functionalized sugar derivatives on an oligoamine scaffold would lead to novel mixed glycoclusters. To control this approach, the relative reactivities of the isothiocyanates used in the thiourea-bridging reaction have to be known. Therefore, competition experiments with six different sugar isothiocyanates were carried out using 1,8-diamino-3,6-dioxaoctane as a symmetrical difunctionalized core molecule. Reactivities were ranked on the basis of integration ratios in the 1H NMR spectra. A first mixed thiourea-bridged glycocluster was successfully prepared.
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© 2002 Springer-Verlag Wien
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Walter, M., Lindhorst, T.K. (2002). Reactivity Tournament of Isothiocyanato-Functionalized Saccharides with 1,6-Diamino-3,6-oxaoctane. In: Schmid, W., Stütz, A.E. (eds) Timely Research Perspectives in Carbohydrate Chemistry. Springer, Vienna. https://doi.org/10.1007/978-3-7091-6130-2_8
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DOI: https://doi.org/10.1007/978-3-7091-6130-2_8
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