Polyoxygenated terpenes and cyanogenic glucosides from Centaurea aspera var. subinermis

Abstract From the methanol extract of Centaurea aspera var. subinermis three polyoxygenated terpenes and two cyanogenic glucosides were isolated. An eudesmane, an elemane and 6′- trans -2-butenoyl ester of prunasin are described for the first time.