Phytochemical Investigation on the Leaves of Laggera Tomentosa (Ethanol Extract)
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Date
2006-07
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Addis Ababa Universty
Abstract
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.
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Keywords
Laggera tomentosa