TANNINS AND RELATED POLYPHENOLS OF MELASTOMATACEOUS PLANTS .2. NOBOTANIN-B, NOBOTANIN-C AND NOBOTANIN-E, HYDROLYZABLE TANNIN DIMER AND TRIMERS FROM TIBOUCHINA-SEMIDECANDRA COGN

被引：0
作者：
YOSHIDA, T
OHWASHI, W
HABA, K
OHBAYASHI, H
ISHIHARA, K
OKANO, Y
SHINGU, T
OKUDA, T
机构：
[1] OKAYAMA UNIV, FAC PHARMACEUT SCI, OKAYAMA 700, JAPAN
[2] KOBE GAKUIN UNIV, NISHI KU, KOBE 673, JAPAN
来源：
CHEMICAL & PHARMACEUTICAL BULLETIN | 1991年 / 39卷 / 09期
关键词：
TIBOUCHINA-SEMIDECANDRA; MELASTOMATACEAE; TANNIN; ELLAGITANNIN OLIGOMER; NOBOTANIN-B; NOBOTANIN-C; NOBOTANIN-E;
D O I：
暂无
中图分类号：
R914 [药物化学];
学科分类号：
100701 ;
摘要：
The structures of three new hydrolyzable tannin oligomers, nobotanins B (7), C (20) and E (21), which were isolated from the leaves of Tibouchina semidecandra COGN. (Melastomataceae), have been elucidated on the basis of spectral and chemical evidence. Nobotanin B is an isomer of a co-existing dimer, nobotanin F, and nobotanins C and E are trimers possessing the nobotanin B moiety as a partial structure.
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页码：2264 / 2270
页数：7
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