4 ISOFLAVONES FROM THE STEM BARK OF ERYTHRINA-SACLEUXII

Authors
YENESEW A MIDIWO JO HEYDENREICH M PETER MG
Citation
A. Yenesew et al., 4 ISOFLAVONES FROM THE STEM BARK OF ERYTHRINA-SACLEUXII, Phytochemistry, 49(1), 1998, pp. 247-249
Citations number
6
Categorie Soggetti
Biology,"Plant Sciences
Journal title
Phytochemistry → ACNP
ISSN journal
00319422
Volume
49
Issue
1
Year of publication
1998
Pages
247 - 249
Database
ISI
SICI code
0031-9422(1998)49:1<247:4IFTSB>2.0.ZU;2-S
Abstract
From the stem bark of Erythrina sacleuxii four new isoflavones were is olated and characterized as 5,7-dihydroxy-2',4',5'-trimethoxyisoflavon e (trivial name, 7-demethylrobustigenin), droxy-4'-methoxy-3'-(3-methy lbut-2-enyl)isoflavone [3'-(3-methylbut-2-enyl)biochanin A], droxy-4'- methoxy-5'-(3-methylbut-2-enyl)isoflavone [5'-(3-methylbut-2-enyl)prat ensein] and 5,7,3'-trihydroxy-4'-methoxy-5'-formylisoflavone (5'-formy lpratensein). The structures were determined on the basis of spectrosc opic evidence. (C) 1998 Elsevier Science Ltd. All rights reserved.