Sesquiterpene lactones and flavanones in Scalesia species

被引：28
作者：
Spring, O
Heil, N
Vogler, B
机构：
[1] Univ Hohenheim, Inst Bot, D-70599 Stuttgart, Germany
[2] Univ Hohenheim, Inst Chem, D-70599 Stuttgart, Germany
来源：
PHYTOCHEMISTRY | 1997年 / 46卷 / 08期
关键词：
Scalesia spp; Heliantheae; Asteraceae; sesquiterpene lactones; flavanones; chemotaxonomy;
D O I：
10.1016/S0031-9422(97)00464-0
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Trichome microsampling and HPLC analysis revealed the presence of sesquiterpene lactones and flavonoids in capitate glandular trichomes from the leaf surface of various species of Scalesia. The paucity in plant material of these plants, endemic to the Galapagos Islands, necessitated the use of micropreparative techniques including LC-NMR and LC-MS for structure elucidation. Leaf extracts of Scalesia baurii ssp. hopkinsii, S. stewartii and a combined sample of several species of the genus afforded two eudesmanolides, four guaianolides, four xanthanolides and three flavanones. This is the first report on the terpenoid chemistry of Scalesia and the chemotaxonomic aspects are discussed. (C) 1997 Elsevier Science Ltd.
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页码：1369 / 1373
页数：5
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