Issue 12, 2024

Synthesis of galactomannan fragments to help NMR assignment of polysaccharides extracted from lichens

Abstract

The synthesis of six model trisaccharides representative of galactomannans produced by lichens was performed through stereoselective glycosylation. These standards include linear and branched galactomannans bearing either galactofuranosyl or galactopyranosyl entities. The complete assignment of 1H and 13C signals for both forms of synthetically reduced oligosaccharides was performed. The resulting NMR data were used to quickly demonstrate the structural characteristics of minor polysaccharides within different extracts of three representative lichens.

Graphical abstract: Synthesis of galactomannan fragments to help NMR assignment of polysaccharides extracted from lichens

Supplementary files

Article information

Article type
Paper
Submitted
10 Jan 2024
Accepted
20 Feb 2024
First published
21 Feb 2024
This article is Open Access
Creative Commons BY-NC license

Org. Biomol. Chem., 2024,22, 2395-2403

Synthesis of galactomannan fragments to help NMR assignment of polysaccharides extracted from lichens

L. David, S. Ferron, B. Favreau, O. Yeni, S. Ollivier, D. Ropartz, I. Compagnon, V. Ferrières, F. Le Dévéhat and L. Legentil, Org. Biomol. Chem., 2024, 22, 2395 DOI: 10.1039/D4OB00047A

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