Bioactive N-isobutylamides from the flower buds of Spilanthes acmella

Authors
Ramsewak, RS Erickson, AJ Nair, MG
Citation
Rs. Ramsewak et al., Bioactive N-isobutylamides from the flower buds of Spilanthes acmella, PHYTOCHEM, 51(6), 1999, pp. 729-732
Citations number
10
Categorie Soggetti
Agricultural Chemistry","Animal & Plant Sciences
Journal title
PHYTOCHEMISTRY
ISSN journal
00319422 → ACNP
Volume
51
Issue
6
Year of publication
1999
Pages
729 - 732
Database
ISI
SICI code
0031-9422(199907)51:6<729:BNFTFB>2.0.ZU;2-V
Abstract
The hexane extract of dried flower buds of Spilanthes acmella afforded thre e N-isobutyl amides: spilanthol, undeca-2E,7Z,9E-trienoic acid isobutylamid e and undeca-2E-en-8,10-diynoic acid isobutylamide. Their structures were d etermined by H-1 and C-13 NMR, MS and GC-MS spectroscopic methods. All were active against Aedes aegyptii larvae and Helicoverpa tea neonates at 12.5 and 250 mu g/mL concentrations, respectively. (C) 1999 Elsevier Science Ltd . All rights reserved.