Sesquiterpene lactones and flavonoids from chrysanthemum vulgare [L.] berth

From chrysanthemum vulgare [L.] Bernh. Three sequiterpene lactones were isolated and identified as 3 beta-hydroxycostunolide [I], 2 alpha, 8 beta-dihydroxycostunolide [II] and tatridin B [III]. In addition, three flavonoids viz. apigenin, luteolin and apigenin-7-0-glucoside were isolated. The structures of these compounds were depicted through spectral studies. All the isolated compounds were reported for the first time from the titled plant