Synthesis of branched and linear 1,4-linked galactan oligosaccharides

Mathias C.F. Andersen, Irene Boos, Christine Kinnaert, Shahid I. Awan, Henriette Lodberg Pedersen, Stjepan Kresimir Kračun, Gyrithe Lanz, Maja Gro Rydahl, Louise Kjærulff, Maria Håkansson, Raymond Kimbung, Derek T. Logan, Charlotte H. Gotfredsen, William G.T. Willats, Mads H. Clausen*

*Corresponding author for this work
1 Citation (Scopus)

Abstract

We report the synthesis of linear and branched (1→4)-d-galactans. Four tetrasaccharides and one pentasaccharide were accessed by adopting a procedure of regioselective ring opening of a 4,6-O-naphthylidene protecting group followed by glycosylation using phenyl thioglycoside donors. The binding of the linear pentasaccharide with galectin-3 is also investigated by the determination of a co-crystal structure. The binding of the (1→4)-linked galactan to Gal-3 highlights the oligosaccharides of pectic galactan, which is abundant in the human diet, as putative Gal-3 ligands.

Original languageEnglish
JournalOrganic and Biomolecular Chemistry
Volume16
Issue number7
Pages (from-to)1157-1162
Number of pages6
ISSN1477-0520
DOIs
Publication statusPublished - 2018

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