Browsing by Author "Woldemariam, Mengistu"

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    Phytochemical Investigation on the Leaves of Senna Sophera
    (Addis Ababa Universty, 2005-06) Woldemariam, Mengistu; Alemayhu, Gizachew (PhD)
    The chloroform extract of Senna sophera leaves, after repeated chromatography separation have yielded three bianthraquinones. Three of these were identified to be floribundone-1(52),10-hydroxfloribundone-2 (V) and 5,7’-physcion-fallacinol (74). To the best of our knowledge, there is no prior report on the isolation of 10- hydroxyfloribundone-2 from any Senna species. 5, 7’-physcion-fallacinol reported for the first time from the plant and floribundone-1 was isolated earlier from the plant.