Química Nova (Jan 2013)

Constituintes químicos de Vernonia scorpioides (Lam) Pers. (Asteraceae) Chemical constituents of Vernonia scorpioides (Lam) Pers. (Asteraceae)

  • Adalva Lopes Machado,
  • Fabiana Martins Aragão,
  • Paulo N. Bandeira,
  • Hélcio Silva dos Santos,
  • Maria Rose Jane R. Albuquerque,
  • Otília Deusdênia L. Pessoa,
  • Edilberto R. Silveira,
  • Edson Paula Nunes,
  • Raimundo Braz-Filho

Journal volume & issue
Vol. 36, no. 4
pp. 540 – 543

Abstract

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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.

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