Figure 1 of
Biju, Mol Vis 2007;
13:1121-1129.
Figure 1. Structure of Drevogenin D
Drevogenin D is the bioactive component isolated from Dregea volubilis. Shown is the steroidal ring structure of Drevogenin D (3β, 11β, 12β, 14β, 20ζ- Pentahydroxy δ5 pregnene), a triterpenoid aglycone isolated from the leaves of Dregea volubilis.