Damulin A

Damulin A is an active dammarane-type saponin isolated from Gynostemma pentaphyllum and belongs to a group of structurally related compounds whose anticancer structure–activity relationships have been deeply explored. Comparative investigations reveal that double bonds positioned at C20 (21) and C20 (22) and hydroxyl modification at C-2 significantly contribute to cytotoxicity, as evidenced by proliferation inhibition in A549 cells. These findings confirm the importance of Damulin A within the broader context of Gynostemma-derived anticancer leads.

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