Constituintes químicos de Vernonia scorpioides (Lam) Pers. (Asteraceae)

The chemical investigation of hexane and ethanol extracts from the aerial parts of Vernonia scorpioides resulted in the isolation and characterization of a new polyacetylene lactone, rel-4-dihydro-4β-hydroxy-5a-octa-2,4,6-triynyl-furan-2-(5H)-one, along with the new ethyl 3,4-dihydroxy-6,8,10-triyny...

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Bibliographic Details
Published in:Química Nova 2013, Vol.36 (4), p.540-543
Main Authors: Machado, Adalva Lopes, Aragão, Fabiana Martins, Bandeira, Paulo N., Santos, Hélcio Silva dos, Albuquerque, Maria Rose Jane R., Pessoa, Otília Deusdênia L., Silveira, Edilberto R., Nunes, Edson Paula, Braz-Filho, Raimundo
Format: Article
Language:English
Subjects:
Asteraceae
lactones
Vernonia scorpioides
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Summary:The chemical investigation of hexane and ethanol extracts from the aerial parts of Vernonia scorpioides resulted in the isolation and characterization of a new polyacetylene lactone, rel-4-dihydro-4β-hydroxy-5a-octa-2,4,6-triynyl-furan-2-(5H)-one, along with the new ethyl 3,4-dihydroxy-6,8,10-triynyl-dodecanoate, and seven known compounds: taraxasteryl acetate, lupeyl acetate, lupeol, lupenone, β-sitosterol, stigmasterol and luteolin. The structure of all compounds was determined by spectrometric techniques (HR-ESI-MS, ¹H and 13C NMR and IV) and comparison with published spectral data.
ISSN:0100-4042
1678-7064
DOI:10.1590/S0100-40422013000400010