CYCLOARTANE TRITERPENES FROM COMBRETUM-QUADRANGULARE

Authors
GANZERA M ELLMERERMULLER EP STUPPNER H
Citation
M. Ganzera et al., CYCLOARTANE TRITERPENES FROM COMBRETUM-QUADRANGULARE, Phytochemistry, 49(3), 1998, pp. 835-838
Citations number
11
Categorie Soggetti
Biology,"Plant Sciences
Journal title
Phytochemistry → ACNP
ISSN journal
00319422
Volume
49
Issue
3
Year of publication
1998
Pages
835 - 838
Database
ISI
SICI code
0031-9422(1998)49:3<835:CTFC>2.0.ZU;2-M
Abstract
In addition to two known flavonoids, kumatakenin and isokaempferide, t hree new cycloartane triterpenes were isolated from the leaves of Comb retum quadrangulare. Their structures were established by the means of 1D and 2D NMR techniques and physical data (MS, IR) as 1 alpha,3 beta -dihydroxy-cycloart-24-ene-30-carboxylic acid, 1 alpha,3 beta-dihydrox y-cycloart-24-ene-30-carboxylic acid methyl ester and (20 xi)-1 alpha, 3 ,25-trihydroxy-cycloart-21-al-23-ene-30-carboxylic acid methyl ester . (C) 1998 Elsevier Science Ltd. All rights reserved.