A new dammarane type triterpene glucoside from the aerial parts of (Rhamnaceae).

3-O--D-glucopyranosyl gouanogenin A (), a new naturally occurring dammarane class of triterpene glucoside, has been isolated from the aerial parts of along with six known secondary metabolites . Their structure was elucidated through spectroscopic data including 1 D- and 2 D-NMR. The compounds and showed significant antioxidant potential in DPPH radical scavenging assay.