Recebido em 28/5/09; aceito em 17/11/09; publicado na web em 2/3/10Sidastrum paniculatum (L.) Fryxell belongs to the family Malvaceae and is popularly known as "malva roxa" or "malvavisco". The phytochemical study of the hexane, CHCl 3 and EtOAc phases from the crude ethanol extract of S. paniculatum led to the isolation of six compounds: a mixture of b-sitosterol and stigmasterol, 4-methoxy-3-hydroxybenzoic acid, 4-methoxy-3-hydroxybenzaldehyde, N-trans-feruloyltyramine and kaempferol-3-O-b-D-(6''-E-p-coumaroyl) glucoside. The structural identification of the compounds was made on the basis of spectroscopic methods such as IR, 1 H and 13 C NMR with the aid of including two-dimensional techniques, besides comparison with literature data. The b-sitosterol and stigmasterol mixture showed a significant anti-inflammatory activity.
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