Triterpenoids from the Stem Bark of <i>Avicennia officinalis</i>
AbstractThe triterpinoids, betulinic acid, lupeol and betulinaldehyde, were isolated from the ethyl acetate extract of the stem bark of Avicennia officinalis (Avicenniaceae) by a combination of column and preparative thin-layer chromatography over silica gel. The structures of these compounds were determined by spectroscopic analysis (UV, IR, 1H NMR, 13CNMR and EIMS). This is the first report of a systematic phytochemical investigation and the presence of these triterpoids from this plant. Key words: Triterpenoid, Avicenniaceae, Betulinic acid, Lupeol and Betulinaldehyde Dhaka Univ. J. Pharm. Sci. Vol.5(1-2) 2006 The full text is of this article is available at the Dhaka Univ. J. Pharm. Sci. website
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