Antibacterial Polyketide Heterodimers from Pyrenacantha kaurabassana Tubers.
Fiche publication
Date publication
avril 2015
Auteurs
Membres identifiés du Cancéropôle Est :
Dr NUZILLARD Jean-Marc
Tous les auteurs :
Boudesocque-Delaye L, Agostinho D, Bodet C, Thery-Kone I, Allouchi H, Gueiffier A, Nuzillard JM, Enguehard-Gueiffier C
Lien Pubmed
Résumé
Two heterodimers comprising anthraquinone and methylbenzoisocoumarin moieties (1 and 2) were isolated, together with emodin and physcion from the tubers of Pyrenacantha kaurabassana. The structures of 1 and 2 were established by NMR spectroscopy, including the analysis of a 2D INADEQUATE spectrum. On the basis of the data obtained, the structures that were previously proposed in the literature for these compounds were revised. Compounds 1 and 2 showed antibacterial activity against three different strains of Staphylococcus aureus. Compound 2 also showed bactericidal activity against Helicobacter pylori.
Référence
J Nat Prod. 2015 Apr 24;78(4):597-603