Additional sesquiterpenes from carthamus mareoticus

ABSTRACT

Several species belonging to the genus Carthamus [family Asteraceae, Tribe Cynareae] have been chemically examined. The most widespread compounds are 6-deoxyhexose derivatives of sesquiterpene alcohols, which seem to be taxonomically significant. C. turkistanikus afforded alpha-bisabolol 6-deoxy-beta-d- fucopyranoside and C. lanatus gave alpha-bisabolol beta-D-fucopyranoside. C. oxyacantha produced hinesol beta-fucopyranoside. C. oxyacantha produced in hinesol beta- fucopyranoside and, recently, two sesquiterpene fucopyranosides were reported from C. mareoticus. Reinvestigation of the latter species gave two more sesquiterpenes I and II