Sesquiterpenes from Onopordum illyricun and their antifeedant activity
- Authors: Rosselli, S; Maggio, AM; Canzoneri, M; Simmonds, MSJ; Bruno, M
- Publication year: 2012
- Type: Articolo in rivista (Articolo in rivista)
- OA Link: http://hdl.handle.net/10447/72958
Abstract
Phytochemical investigation of the acetone extract of the aerial parts of Onopordum illyricum L. afforded five known sesquiterpenoids: compounds 3 and 4 already isolated from O. illirycum, and 8α-[4’-hydroxymethacryloyloxy]-sonchucarpolide (1), 8α-[4’-hydroxymethacryloyloxy]-4-epi-sonchucarpolide (2) and 8-(4’-hydroxymethacryloyl)-dehydromelitensin (5), not previously detected in this species. Compounds 4 and 5 showed moderate antifeedant activity against larvae of Spodoptera littoralis.