Pyrrolizidine alkaloids and diterpenes from Villasenoria orcuttii

@article{Arciniegas2013PyrrolizidineAA,
  title={Pyrrolizidine alkaloids and diterpenes from Villasenoria orcuttii},
  author={Amira Arciniegas and Ana L. P{\'e}rez-Castorena and Karina Acevedo Gonz{\'a}lez and Marisol Reyes-Lezama and Jos{\'e} Luis Villase{\~n}or and Alfonso Romo de Vivar},
  journal={Journal of the Brazilian Chemical Society},
  year={2013},
  volume={24},
  pages={1167-1171}
}
The chemical study of Villasenoria orcuttii, the only species of the genus Villasenoria, afforded three acyclic diterpenes, two of them described for the first time. Two pyrrolizidine alkaloids, florosenine and floridanine, among other known compounds were also isolated. The absolute configuration of floridanine was determined by X-ray analysis using anomalous dispersion with Cu Kαradiation, and its1 H and13 C nuclear magnetic resonance (NMR) data were corrected. 
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