Cephalotoside A: a tridesmosidic cycloartane type glycoside from Astragalus cephalotes var. brevicalyx

Authors
Calis, I Yusufoglu, H Zerbe, O Sticher, O
Citation
I. Calis et al., Cephalotoside A: a tridesmosidic cycloartane type glycoside from Astragalus cephalotes var. brevicalyx, PHYTOCHEM, 50(5), 1999, pp. 843-847
Citations number
6
Categorie Soggetti
Agricultural Chemistry","Animal & Plant Sciences
Journal title
PHYTOCHEMISTRY
ISSN journal
00319422 → ACNP
Volume
50
Issue
5
Year of publication
1999
Pages
843 - 847
Database
ISI
SICI code
0031-9422(199903)50:5<843:CAATCT>2.0.ZU;2-#
Abstract
A new tridesmosidic cycloartane type glycoside, cephalotoside A was isolate d from the roots of Astragahus cephalotes var. brevicalyx in addition to th e known glycosides cyclocanthosides A, D and E. The structure of the new co mpound was determined by spectral (IR, H-1- and C-13-NMR, and FABMS) and ch emical (acetylation) methods and established as 3 beta-(beta-D-xylopyranosy l)oxy-16 beta-(beta-D-glucopyranosyl)oxy-24- (beta-D-xylopyranosyl)oxy-cycl oarlane-6 alpha,25-diol. (C) 1999 Published by Elsevier Science Ltd. All ri ghts reserved.