C-glycosidic flavonoids from Cassia occidentalis

被引：39

作者：

Hatano, T ^{[1
]}

Mizuta, S ^{[1
]}

Ito, H ^{[1
]}

Yoshida, T ^{[1
]}

机构：

[1] Okayama Univ, Fac Pharmaceut Sci, Okayama 7008530, Japan

来源：

PHYTOCHEMISTRY | 1999年 / 52卷 / 07期

关键词：

Cassia occidentalis; Leguminosae; cassiaoccidentalin A; cassiaoccidentalin B; cassiaoccidentalin C; flavonoid; conformation;

D O I：

10.1016/S0031-9422(99)00437-9

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Three new C-glycosidic flavonoids, cassiaoccidentalins A, B and C, were isolated from aerial parts of Cassia occidentalis and their structures with a 3-keto sugar were established on the basis of spectroscopic and chemical evidence. They showed signals of two conformers in their H-1- and C-13-NMR spectra due to hindered rotation around their C-glycosidic linkages, and the conformations in solution were analyzed by NMR spectroscopic analyses. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：1379 / 1383

页数：5

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