Abstract
Phytochemical study of the aerial parts of Imperata cylindrica Beauv. (Graminae), growing in Egypt afforded four methoxylated flavonoids 1-4, beta-sitosterol-3-O-beta-D-glucopyranosyl-6' -tetradecanoate 5, 3-hydroxy-4-methoxy-benzaldehyde 6, together with daucosterol, beta-sitosterol and alpha-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 CCl4. The structures were determined using spectroscopic data; 1D (H-1 and C-13), 2D (HSQC, and HMBC) NMR; MS; UV and IR.