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Xanthone and Flavonoid Constituents ofGarcinia dulcis(Guttiferae)

 

作者: LeslieJ. Harrison,   Lup-San Leong,   Yuan-Wah Leong,   Guat-Lee Sia,   Keng-Yeow Sim,   HughT.-W. Tan,  

 

期刊: Natural Product Letters  （Taylor Available online 1994）
卷期: Volume 5, issue 2  

页码: 111-116

 

ISSN:1057-5634

 

年代: 1994

 

DOI:10.1080/10575639408044043

 

出版商: Taylor & Francis Group

 

关键词: Garcinia dulcis;1,4,6-trihydroxy-5-methoxy-7-(3-methylbut-2-enyl)xanthone;3′-(3-methylbut-2-enyl)naringenin;I3,II8-biapigenin;podocarpusflavone-A

 

数据来源: Taylor

 

摘要:

Extraction of the branches ofGarcinia dulcisafforded a xanthone with a novel oxygenation pattern [1,4,6-trihydroxy-5-methoxy-7-(3-methylbut-2-enyl)xanthone] in addition to the triterpenoid friedelin and the known flavonoids 3′-(3-methylbut-2-enyl)naringenin, I3,II8-biapigenin and podocarpusflavoneA. The structures were determined by a combination of 2D homo- and heteronuclear NMR correlation spectroscopy and NOE difference spectroscopy.

 

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