Polar secondary metabolites of Ferula persica roots.

Phytochemical investigation of the methanolic extract of the dried roots of Ferula persica resulted in four sesquiterpene coumarin glycosides, persicaosides A-D, and two known phytosterol glucosides, sitosterol 3-O-beta-glucoside and stigmasterol 3-O-beta-glucoside. The structures of these compounds were elucidated by extensive spectroscopic methods including 1D-((1)H and (13)C) and 2D NMR experiments (DQF-COSY, HSQC, HMBC, and ROESY) as well as ESIMS and TOFMS analyses.