3,5,7,3′,5′-Pentahydroxyflavan and 3α-methoxyfriedelan from Humboldtia laurifolia |
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| Authors: | Upasiri Samaraweera Subramaniam Sotheeswaran M Uvais S Sultanbawa |
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| Institution: | Department of Chemistry, University of Peradeniya, Peradeniya, Sri Lanka |
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| Abstract: | The leaf, bark and timber extractives of Humboldtia laurifolia were investigated and the following compounds have been isolated: O-acetyloleanolic aldehyde, a sitosteryl ester, lupeol, sitosterol, a fatty acid, 5,7,4′-trihydroxyflavone (apigenin), (2R,3R)-3,5,7,3′,5′-pentahydroxyflavan and 3α-methoxyfriedelan. The latter two compounds are new natural products. |
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| Keywords: | Leguminosae lupeol 5 7 4′-trihydroxy-flavone 3α-methoxyfriedelan |
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