Serine- and mannoside-derived thioesters and a mannosidic cysteine
derivative were prepared to test native chemical ligation (NCL)
for protecting-group-free synthesis of small glycopeptide clusters,
which are valuable tools in the glycosciences. The glycopeptides
and glycopeptide clusters, respectively, which were obtained via
NCL, bear the potential for dimerization and other derivatization
of the thiol functionality.
carbohydrates - glycopeptides - glycoclusters - native chemical ligation - protecting-group-free
synthesis