Quadranosides VI-XI, six new triterpene glucosides from the seeds of Combretum quadrangulare

Authors
Adnyana, IK Tezuka, Y Awale, S Banskota, AH Tran, KQ Kadota, S
Citation
Ik. Adnyana et al., Quadranosides VI-XI, six new triterpene glucosides from the seeds of Combretum quadrangulare, CHEM PHARM, 48(8), 2000, pp. 1114-1120
Citations number
19
Categorie Soggetti
Chemistry & Analysis
Journal title
CHEMICAL & PHARMACEUTICAL BULLETIN
ISSN journal
00092363 → ACNP
Volume
48
Issue
8
Year of publication
2000
Pages
1114 - 1120
Database
ISI
SICI code
0009-2363(200008)48:8<1114:QVSNTG>2.0.ZU;2-S
Abstract
Six new triterpene glucosides, quadranosides VI-XI (1-6), belonging to thre e different [ursane- (1-4), oleanane- (5) and lupane-type (6)] triterpene c lasses, have been isolated from a MeOH extract of the seeds of Combretum qu adrangulare KURZ (Combretaceae), together with nine known compounds, rosamu tin (7), 28-O-beta-D-glucopyranosyl-6 beta,23-dihydroxytormentic acid (8), arjunetin (9), arjunglucoside II (10), combreglucoside (11), chebuloside II (12), vitexin (13), (+)-catechin (14) and (-)-epigallocatechin (15). The s tructures of these compounds were elucidated by spectroscopic analysis.