@article{amina_musayeib_mohamed_ibrahim_2017,  title={Plectraterpene, a new ursane-type triterpene ester and other steroids from the aerial parts of <i>Plectranthus montanus</i>},  volume={27},  ISSN={0102-695X},  url={https://doi.org/10.1016/j.bjp.2017.05.015},  DOI={10.1016/j.bjp.2017.05.015},  number={6},  journal={Revista Brasileira de Farmacognosia},  publisher={Sociedade Brasileira de Farmacognosia},  author={Amina, Musarat and Musayeib, Nawal M. Al and Mohamed, Gamal A. and Ibrahim, Sabrin R.M.},  year={2017},  month={Nov},  pages={698–701} }