Browsing by Author "G/Heiwot, Kibrom"

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    Phytochemical Investigation on the Leaves of Laggera Tomentosa (Ethanol Extract)
    (Addis Ababa Universty, 2006-07) G/Heiwot, Kibrom; Asfaw, Nigist (PhD)
    Laggera tomentosa is a perennial fragrant bushy herb endemic plant of Ethiopia. Chemical investigation on the ethanol extract of the leaves resulted in the isolation of one sesquiterpene and two flavones namely, 3-(3’- acetoxy-2’- hydroxy-2’-methyl butyryl)- cuauhtemone(LTE-3), 3’, 5, 6-trihydroxy -3, 4’, 7- Trimethoxyflavone (LTE-5), 3’, 4’, 5, 7-tetrahydroxy -3, 6- dimethoxyflavone (LTE-6). Of these LTE-3 and LTE-6 were not reported before to the best of our knowledge. The structures of the isolated compounds were established by spectroscopic techniques and chemical correlation.