SESQUITERPENES OF CLADANTHUS-ARABICUS

Authors
DANIEWSKI WM DANIKIEWICZ W GUMULKA M PANKOWSKA E KRAJEWSKI J GRABARCZYK H WICHLACZ M
Citation
Wm. Daniewski et al., SESQUITERPENES OF CLADANTHUS-ARABICUS, Phytochemistry, 34(6), 1993, pp. 1639-1641
Citations number
10
Categorie Soggetti
Plant Sciences
Journal title
Phytochemistry → ACNP
ISSN journal
00319422
Volume
34
Issue
6
Year of publication
1993
Pages
1639 - 1641
Database
ISI
SICI code
0031-9422(1993)34:6<1639:SOC>2.0.ZU;2-J
Abstract
A methanol extract of Cladanthus arabicus gave two sesquiterpenes. One was a new compound, cladantholide, identified as 2-oxy-1 alpha H,5 al pha H,6 beta H,7 alpha H,11 alpha H-guai-3,4-en-6,12-olide. The other compound was sintenin elucidated as 3 beta,9 beta-diacetoxy-6 beta H,7 alpha H-germaera-1(10),4(5)-diene-6,12-olide. The structures of these compounds were substantiated by high field H-1 and C-13 NMR spectrosc opy. The structure of cladantholide was confirmed by single crystal X- ray diffraction.