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

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 α,10 α-epoxyaromadendrane, friedelin, taraxasteryl acetate, p...

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Bibliographic Details
Published in:Química nova 2008-01, Vol.31 (7), p.1691-1695
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
Subjects:
Asteraceae
chemical constituents
Vernonia chalybaea
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Summary: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 α,10 α-epoxyaromadendrane, friedelin, taraxasteryl acetate, pseudotaraxasteryl acetate, lupeyl acetate, lupeol, α-amiryn, β-amiryn, β-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.
ISSN:0100-4042
1678-7064
DOI:10.1590/S0100-40422008000700017