Tannins and related polyphenols of melastomataceous plants.: VIII.: Nobotanins L, M and N, trimeric hydrolyzable tannins from Tibouchina semidecandra

被引：0
|
作者：
Yoshida, T [1 ]
Nakata, F [1 ]
Okuda, T [1 ]
机构：
[1] Okayama Univ, Fac Pharmaceut Sci, Okayama 7008530, Japan
来源：
CHEMICAL & PHARMACEUTICAL BULLETIN | 1999年 / 47卷 / 06期
关键词：
Tibouchina semidecandra; melastomataceae; tannin; nobotanin L; nobotanin M; nobotanin N;
D O I：
暂无
中图分类号：
R914 [药物化学];
学科分类号：
100701 ;
摘要：
Three new hydrolyzable tannins, nobotanins L, M and N, were isolated from the water-soluble portion of the leaf extract of Tibouchina semidecandra, and their trimeric structures were elucidated from spectral and chemical evidence, Nobotanins L and N exist as equilibrium mixtures of four anomers due to the presence of two unacylated anomeric centers.
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页码：824 / 827
页数：4
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