Isolation of Anemonin from Pulsatilla wallichiana and its Biological Activities
The phytochemical work on Pulsatilla wallichiana Ulbr. (Ranunculaceae Juss.) afforded a dilactone, anemonin (1) isolated, purified and identified by spectroscopic methods and comparison of their spectral data with the reported data. To the best of our knowledge, this compound was isolated for the first time from Pulsatilla wallichiana Ulbr. Moreover, the aqueous (aq.) methanolic extract of the whole plant sample of Pulsatilla wallichiana Ulbr. (PWW) and the methanolic extract of the whole plant sample of Physochlaina praealta (Decne.) Miers (Solanaceae Juss.; PPM) were also investigated for several biological activities including antifungal, antiinflammatory, anticancer (Rh30, Hela, 3T3), cytotoxic, phytotoxic, brine shrimp lethality and insecticidal activities. PWW showed insignificant antifungal while higher anti-inflammatory activity as compared to PPM. In anticancer activity, PWW showed a concentration dependent effect on Rh30 cell viability while both samples exhibited moderate phytotoxic activity.