@article{abreu_branco_2003,  title={Natural product-like combinatorial libraries},  volume={14},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532003000500002},  DOI={10.1590/S0103-50532003000500002},  number={5},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Abreu, Pedro M. and Branco, Paula S.},  year={2003},  month={Sep},  pages={675–712} }