@article{diniz_viana_torres_braz filho_silveira_pessoa_2015,  title={An Uncommon Naphthaquinoid and a New Lignan Derivative from the Roots of <i>Cordia leucocephala</i> Moric},  volume={26},  ISSN={0103-5053},  url={https://doi.org/10.5935/0103-5053.20140283},  DOI={10.5935/0103-5053.20140283},  number={2},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Diniz, Jaécio C. and Viana, Francisco A. and Torres, Maria da Conceição M. and Braz Filho, Raimundo and Silveira, Edilberto R. and Pessoa, Otília D.},  year={2015},  month={Feb},  pages={325–330} }