@article{martins_cruz jr._derogis_santos_veloso_ellena_doriguetto_2007,  title={Natural polyprenylated benzophenones: keto-enol tautomerism and stereochemistry},  volume={18},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532007000800011},  DOI={10.1590/S0103-50532007000800011},  number={8},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Martins, Felipe T. and Cruz Jr., José W. and Derogis, Priscilla B. M. C. and Santos, Marcelo H. dos and Veloso, Márcia P. and Ellena, Javier and Doriguetto, Antônio C.},  year={2007},  pages={1515–1523} }