Constituintes químicos de Vernonia chalybaea mart. Chemical constituents of Vernonia chalybaea mart.

• Main Authors: Francisco José da Costa, Paulo N. Bandeira, Maria Rose Jane R. Albuquerque, Otília Deusdênia L. Pessoa, Edilberto R. Silveira, Raimundo Braz-Filho
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2008-01-01
• Series: Química Nova
• Subjects: Vernonia chalybaea; Asteraceae; chemical constituents
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000700017

<abstract language="eng">The chemical investigation of the hexane and ethanol extracts from aerial parts of Vernonia chalybaea conducted to the isolation and characterization of a new aliphatic tetrahydroxyl ether, along with a series of known compounds such as 4 &#945;,10 &#945;-epoxyaromadendrane, friedelin, taraxasteryl acetate, pseudotaraxasteryl acetate, lupeyl acetate, lupeol, &#945;-amiryn, &#946;-amiryn, &#946;-sitosterol, stigmasterol, 2,3-dimethyl-1,2,3-tri-hydroxybuthanol, angophorol, angophorol-7-O-glucoside, angophorol-7-O-rutinoside, 3,7-dimethoxy-5,3',4'-trihydroxyflavone and acacetin. The structures of all compounds were determined by spectroscopic analysis and comparison with published spectral data.