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Cycloartane triterpenes from Euphorbia tuckeyana
M J Ferreira1, F C Pinto, J R Ascenso
1CECF, Faculdade de Farmácia, Universidade de Lisboa, Portugal. mjuferreira@ff.ul.pt
Natural Product Letters
|February 14, 2002
Abstract:
Investigation of the acetone extract of the whole plant of Euphorbia tuckeyana afforded a new cycloartane-type triterpene named as cyclotucanol. Its structure was established as cycloartane-24-methylene-3beta,25-diol (1). The known cycloartane triterpenes cycloeucalenol (2), 3beta-hydroxycycloart-25-en-24-one (3), cycloart-25-ene-3beta,24-diol (4), 25,26,27-trisnor-3beta-hydroxycycloartan-24-al (5) and cycloart-23-ene-3beta,25-diol (6) were also isolated and identified.