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

Autor: David LP; Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France. laurent.legentil@ensc-rennes.fr., Ferron S; Univ Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France., Favreau B; Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France. laurent.legentil@ensc-rennes.fr., Yeni O; Univ Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622 Villeurbanne, France., Ollivier S; INRAE, UR BIA, F-44316 Nantes, France.; INRAE, BIBS Facility, F-44316 Nantes, France., Ropartz D; INRAE, UR BIA, F-44316 Nantes, France.; INRAE, BIBS Facility, F-44316 Nantes, France., Compagnon I; Univ Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, F-69622 Villeurbanne, France., Ferrières V; Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France. laurent.legentil@ensc-rennes.fr., Le Dévéhat F; Univ Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France., Legentil L; Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France. laurent.legentil@ensc-rennes.fr.
Jazyk: angličtina
Zdroj: Organic & biomolecular chemistry [Org Biomol Chem] 2024 Mar 20; Vol. 22 (12), pp. 2395-2403. Date of Electronic Publication: 2024 Mar 20.
DOI: 10.1039/d4ob00047a
Abstrakt: 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 1 H and 13 C 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.
Databáze: MEDLINE
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