Eupatarone (Caleprunin B) is a bacterial inhibitor. Eupatarone can be obtained from Calea platylepis[1].
References
[1] do Nascimento AM, et al. Antimicrobial activity of extracts and some compounds from Calea platylepis. Fitoterapia. 2004 Jul;75(5):514-9. DOI:10.1016/j.fitote.2004.04.005
