Xanthatin and xanthinosin, 2 sesquiterpene lactones isolated from the burs of Xanthiun strumarium L. (cocklebur), showed moderate to high in vitro cytotoxic activity in the human cancer cell lines WiDr ATCC (colon), MDA-MB-231 ATCC (breast), and NCI-417 (lung). Xanthatin and xanthinosin were
A new flavone glycoside, chrysoeriol 7-O-(2"-O-6'''-O-acetyl-beta-D-glucopyranosyl-beta-D-glucopyranoside (1), along with fourteen known compounds 2-15 were isolated from the whole plant of Carduus crispus Linn. Their structures were established on the basis of spectroscopic methods and chemical