@article{newman_2016,  title={Natural Product-Derived Drugs Based on β-Adrenergic Agents and Nucleosides},  volume={27},  ISSN={0103-5053},  url={https://doi.org/10.5935/0103-5053.20160070},  DOI={10.5935/0103-5053.20160070},  number={8},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Newman, David J.},  year={2016},  month={Aug},  pages={1320–1333} }