@article{alves_souza_chaves_2011,  title={Three new compounds from Piper montealegreanum Yuncker (Piperaceae)},  volume={22},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532011000800026},  DOI={10.1590/S0103-50532011000800026},  number={8},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Alves, Harley da S. and Souza, Maria de F. V. de and Chaves, Maria C. de O.},  year={2011},  month={Aug},  pages={1610–1615} }