Syntheses of new peptidic glycoclusters derived from β-alanine:: di- and trimerized glycoclusters and glycocluster-clusters

Fluorescence-labeled glycoclusters I and 2 have been synthesized to elongate glycocluster units that contain beta-alamine derivative 6 and sugar unit 7. Similarly, di- and trimerized glycoclusters 3 and 4 have been obtained by coupling glycocluster 17 with succinyl chloride and/or trimesoyl chloride, respectively. Furthermore, glycocluster-cluster 5 was also synthesized by a convergent growth approach. (c) 2006 Elsevier Ltd. All rights reserved.