title: Cycloartane triterpenes from Euphorbia tuckeyana.
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.
authors.affiliation: CECF, Faculdade de Farmácia, Universidade de Lisboa, Portugal. mjuferreira@ff.ul.pt
authors.forename: M J
authors.initials: MJ
authors.lastname: Ferreira
authors.forename: F C
authors.initials: FC
authors.lastname: Pinto
authors.forename: J R
authors.initials: JR
authors.lastname: Ascenso
mesh_terms: D000354:Africa, Western; D028481:Euphorbia / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D006868:Hydrolysis; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D013055:Spectrophotometry, Infrared; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: D014315:Triterpenes