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Defensive chemistry of Senecio miser

AuthorsReina, Matías CSIC ORCID; González-Coloma, Azucena CSIC ORCID; Gutiérrez, Carmen CSIC ORCID; Cabrera, Raimundo; López Rodríguez, Matías; Fajardo, Víctor; Villarroel, Luis
Issue Date26-Jan-2001
PublisherAmerican Chemical Society
American Society of Pharmacognosy
CitationJournal of Natural Products 64(1): 6-11 (2001)
AbstractThree eremophilanolides, 1α-acetoxy-8β-methoxy-10βH-eremophil-7(11)-en-8α,12-olide (1); 1α-angeloyloxy-6β-hydroxy-8β-methoxy-10βH-eremophil-7(11)-en-8α,12-olide (2); and 1α-angeloyloxy-8βH,10βH-eremophil-7(11)-en-8α,12-olide (3), and two pyrrolizidine alkaloids, integerrimine (4) and its N-oxide (5), were isolated from bioactive fractions of Senecio miser. The structures of the new compounds 1 and 2 were established by NMR spectroscopic analysis and chemical transformation. The X-ray analysis of compound 1 was also performed. Eremophilanolides 1 and 2 and alkaloids 4 and 5 were found to be strong insect antifeedants, further supporting a proposed defensive role for these classes of compounds.
Description6 pages, 3 figures, 5 tables.-- PMID: 11170657 [PubMed].-- Available online Dec 5, 2000.
Supporting information (6 Suppl. tables) available at: http://pubs.acs.org/doi/suppl/10.1021/np000114o
Publisher version (URL)http://dx.doi.org/10.1021/np000114o
Appears in Collections:(ICA) Artículos
(IPNA) Artículos
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