Guaiane dimers from Xylopia vielana

Authors
Kamperdick, C Phuong, NM Van Sung, T Adam, G
Citation
C. Kamperdick et al., Guaiane dimers from Xylopia vielana, PHYTOCHEM, 56(4), 2001, pp. 335-340
Citations number
10
Categorie Soggetti
Agricultural Chemistry","Animal & Plant Sciences
Journal title
PHYTOCHEMISTRY
ISSN journal
00319422 → ACNP
Volume
56
Issue
4
Year of publication
2001
Pages
335 - 340
Database
ISI
SICI code
0031-9422(200102)56:4<335:GDFXV>2.0.ZU;2-F
Abstract
From the leaves of Xylopia vielana (Annonaceae) the three dimeric guaianes vielanin A-C were isolated and structurally elucidated by mass and NMR spec troscopy as 1-3. The structure of I contains a bridged ring system formed p robably via a Diels-Alder reaction of two different guaiane monomers. Compo unds 2 and 3 represent symmetric cyclobutanes formally generated from two e qual guaiane moieties by [2 + 2] cycloaddition. (C) 2001 Elsevier Science L td. All rights reserved.