Three terpenoid glycosides of Centipeda minima

From the n-BuOH-soluble extract of the whole plant of Centipeda minima (Asteraceae), the investigation on chemical constituents led to the isolation of three new compounds including 3'-desulphatedatractyloside (1), 15-O-[alpha-L-rhamnosyl-(1 -> 2)-beta-D-glucosyl]grandiflorolic acid (2), and 2 alpha-hydroxylemmonin C (3), along with five known compounds (4-8). Their structures were elucidated on the basis of the NMR spectroscopic analysis.