Pyrrolizidine alkaloids from Heliotropium megalanthum.

  title={Pyrrolizidine alkaloids from Heliotropium megalanthum.},
  author={Mat{\'i}as Reina and Azucena Gonz{\'a}lez-Coloma and Carmen Villaverde Gutierrez and Raimundo Cabrera and J L M Henriquez and Luis Miguel Villarroel},
  journal={Journal of natural products},
  volume={61 11},
Two pyrrolizidine alkaloids, megalanthonine (1) and lycopsamine (2), have been isolated from Heliotropium megalanthum. The structure of the novel compound 1 was determined by spectroscopic methods. The insecticidal, antifeedant, and antifungal effects of compounds 1 and 2 have been evaluated. 

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