Investigation of the flavonoid content of verbena peruviana

ABSTRACT

The ethyl acetate fraction of the alcoholic extract of Verbena peruviana afforded eight flavonoids kaempferol, quercetin, luteolin, kaempferol 3-0-[3-acetyl beta-D-glucoside], kaempferol 3-0-beta-D-glucoside, quercetin 3-0-beta-D-glucoside, luteolin 7-0-beta-D-glucoside and luteolin 7-0-alpha-L-rhamonosyl [1-6] beta-D-glucoside. Identification of these compounds was based on their UV, IR, 1H-NMR, 1H-COSY, 13C-NMR, 13C-NMR [APT] spectral data, mp and TLC comparison with authentic materials