@article{almeida_fraiz jr._braz-filho_1999,  title={Synthesis and structural confirmation of natural 1,3-diarylpropanes},  volume={10},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50531999000500002},  DOI={10.1590/S0103-50531999000500002},  number={5},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Almeida, Paulo A. de and Fraiz Jr., Silas V. and Braz-Filho, Raimundo},  year={1999},  month={Sep},  pages={347–353} }