Cycloartane type triterpenoids from the rhizomes of Polygonum bistorta

被引：59

作者：

Manoharan, KP

Benny, TKH

Yang, DW

机构：

[1] Natl Univ Singapore, Fac Sci, Dept Chem, Singapore 117543, Singapore

[2] Natl Univ Singapore, Fac Med, Dept Pharmacol, Singapore 119260, Singapore

[3] Natl Univ Singapore, Fac Sci, Dept Sci Biol, Singapore 117543, Singapore

来源：

PHYTOCHEMISTRY | 2005年 / 66卷 / 19期

关键词：

Polygonum bistorta; cycloartane triterpenoids; beta-sitosterol; beta-sitosterone; Friedelin; 3; beta-Friedelinol; cycloartanone;

D O I：

10.1016/j.phytochem.2005.07.008

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：

Two new compounds, 24(E)-ethylidenecycloartanone (1) and 24(E)-ethylidenecycloartan-3 alpha-ol (2) were isolated from the rhizomes of Polygonurn bistorta, together with seven known compounds viz., cycloartane-3,24-dione (3), 24-methylenecycloartanone (4), gamma-sitosterol (5), beta-sitosterol (6), beta-sitosterone (7), friedelin (8) and 3 beta-friedelinol (9). All the cycloartane type triterpenoids, compounds 7 and 8 are reported for the first time from this plant. A combination of 1D and 2D NMR spectroscopy and MS were mainly used to elucidate the structures of the new compounds 1 and 2. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：2304 / 2308

页数：5

共 21 条

[1] CYCLOCLARKEANOL, A NEW TRITERPENE FROM EUPHORBIA-CLARKEANA [J].