Oliveridepsidones A-D, antioxidant depsidones from Garcinia oliveri

Four new prenylated depsidones, oliveridepsidones A–D, were isolated from the bark of Garcinia oliveri collected in Vietnam. Their structures were elucidated using mainly NMR techniques (1H and 13C NMR, HMQC, HMBC and NOE experiments). Copyright © 2012 John Wiley & Sons, Ltd. Four new prenylated...

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Veröffentlicht in:	Magnetic resonance in chemistry 2012-03, Vol.50 (3), p.242-245
Hauptverfasser:	Ha, Ly Dieu, Hansen, Poul Erik, Duus, Fritz, Pham, Hung Dinh, Nguyen, Lien-Hoa D.
Format:	Artikel
Sprache:	eng
Schlagworte:	13C Antioxidants - chemistry Antioxidants - isolation & purification Depsides - chemistry Depsides - isolation & purification Garcinia - chemistry Garcinia oliveri Guttiferae Lactones - chemistry Lactones - isolation & purification Magnetic Resonance Spectroscopy - standards Molecular Conformation NMR oliveridepsidones A-D Plant Bark - chemistry Reference Standards
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Beschreibung
Zusammenfassung:	Four new prenylated depsidones, oliveridepsidones A–D, were isolated from the bark of Garcinia oliveri collected in Vietnam. Their structures were elucidated using mainly NMR techniques (1H and 13C NMR, HMQC, HMBC and NOE experiments). Copyright © 2012 John Wiley & Sons, Ltd. Four new prenylated depsidones, oliveridepsidones A‐D, were isolated from the bark of Garcinia oliveri collected in Vietnam. Their structures were elucidated using mainly NMR techniques (1H and 13C NMR, HMQC, HMBC and NOE). DPPH radical scavenging activity testing showed that all the depsidones and xanthones possessed antioxidant activity.
ISSN:	0749-1581 1097-458X
DOI:	10.1002/mrc.2862