Badrakemonin, a new eremophilane-type sesquiterpene from the roots of Ferula badrakema Kos.-Pol.

Phytochemical investigation of the dichloromethane extract of the dried roots of Ferula badrakema resulted in the identification of one new and six known compounds. Known compounds were sesquiterpene coumarins: mogoltacin, feselol, badrakemin acetate, ferocaulidin, conferone and conferol acetate. The new compound was a sesquiterpene, named badrakemonin. The structures of these compounds were elucidated by extensive NMR spectroscopic methods including 1D-( 1 H and 13 C) and 2D-NMR (HSQC, HMBC, and ROESY) as well as MS experiments.