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

Authors
  • David, Louis-Philippe1
  • Ferron, Solenn2
  • Favreau, Bénédicte1
  • Yeni, Oznur3
  • Ollivier, Simon4, 5
  • Ropartz, David4, 5
  • Compagnon, Isabelle3
  • Ferrières, Vincent1
  • Le Dévéhat, Françoise2
  • Legentil, Laurent1
  • 1 Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France. [email protected]. , (France)
  • 2 Univ Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France. , (France)
  • 3 Univ Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622 Villeurbanne, France. , (France)
  • 4 INRAE, UR BIA, F-44316 Nantes, France. , (France)
  • 5 INRAE, BIBS Facility, F-44316 Nantes, France. , (France)
Type
Published Article
Journal
Organic & Biomolecular Chemistry
Publisher
The Royal Society of Chemistry
Publication Date
Mar 20, 2024
Volume
22
Issue
12
Pages
2395–2403
Identifiers
DOI: 10.1039/d4ob00047a
PMID: 38412026
Source
Medline
Language
English
License
Unknown

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.

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