Bellisosides A–F, six novel acylated triterpenoid saponins from Bellis perennis (compositae)

Six new acylated triterpenoid saponins, bellisosides A–F (), were isolated from the roots of Bellis perennis (Compositae) together with a known saponin, bellissaponin BS2 (). These saponins which bear polygalacic acid as sapogenin, are bisdesmosidic glycosides. The structures were elucidated on the basis of chemical and physicochemical evidence. The cytotoxic activities of against HL-60 human promyelocytic leukemia cells are also reported.