Chemical Composition and Hepato-protective activity of Imperata cylindrica Beauv

Abstract

Phytochemical study of the aerial parts of Imperata cylindrica Beauv. (Graminae), growing in Egypt afforded four methoxylated flavonoids 1-4 , β-sitosterol-3-0-β-D-glucopyranosyl-6 ' -tetradecanoate 5 , 3-hydroxy-4-methoxy­benzaldehyde 6 , together with daucosterol, β-sitosterol and α-amyrin 7-9. To the best of our knowledge, this is the first isolation of compounds 1-5 from the genus Imperata. A significant hepato-protective activity had been observed upon co-administration of the methanolic extracts of I. cylindrica with CCl 4 . The structures were determined using spectroscopic data; 1D ( 1 H and 13 C), 2D (HSQC, and HMBC) NMR; MS; UV and IR.