Hirtusneanoside, an unsymmetrical dimeric tetrahydroxanthone from the Lichen Usnea hirta

被引：43
|
作者：
Rezanka, Tomas [1 ]
Sigler, Karel [1 ]
机构：
[1] Acad Sci Czech Republic, Inst Microbiol, CR-14220 Prague, Czech Republic
来源：
JOURNAL OF NATURAL PRODUCTS | 2007年 / 70卷 / 09期
关键词：
D O I：
10.1021/np070079m
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Hirtusneanoside, a new O-deoxyglycoside of a dimeric tetrahydroxanthone, was isolated from the lichen Usnea hirta. Its structure, including the absolute configuration, was determined by means of extensive spectroscopic data (UV, IR, MS, CD, ID and 2D NMR) and chemical degradation. Hirtusneanoside has a unique structure comprising L-rhamnopyranoside of a tetrahydroxanthone dimer and showed growth inhibitory activities against Gram-positive bacteria.
引用
收藏
页码：1487 / 1491
页数：5
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