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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.
