RESUMO
Three new flavonol glycosides isolated from the 70% methanol extract of Suaeda maritima (Chenopodiaceae) were characterized based on spectroscopic and chemical methods as quercetin 3-O-α-l-rhamnopyranosyl(1â³' â 6â³)-ß-d-galactopyranoside-7-O-ß-d-glucopyranosyl(1â³â³' â 2â³â³)-glucopyranoside, kaempferol 3-O-α-l-rhamnopyranosyl(1â³' â 6â³)-ß-d-galactopyranoside-7-O-ß-d-glucopyranosyl(1â³â³' â 2â³â³)-glucopyranoside, and kaempferol 3-O-α-l-rhamnopyranosyl(1â³' â 6â³)-ß-d-galactopyranoside-7-O-(2â³â³'-O-trans-feruloyl)-ß-d-glucopyranosyl-(1â³â³' â 2â³â³)-ß-d-glucopyranoside. In addition, four known compounds, namely, quercetin and kaempferol, methyl cis, trans-ferulate, and methyl trans-ferulate were identified. The plant extract and these compounds showed cytotoxic activity against the human tumor cell lines MCF7, HCT116, and HEPG2.