TY - JOUR T1 - Plectraterpene, a new ursane-type triterpene ester and other steroids from the aerial parts of Plectranthus montanus JO - Revista Brasileira de Farmacognosia A1 - Amina, Musarat A1 - Musayeib, Nawal M. Al A1 - Mohamed, Gamal A. A1 - Ibrahim, Sabrin R.M. SN - 0102-695X UL - 10.1016/j.bjp.2017.05.015 VL - 27 Y1 - 2017 PB - Brasil ER -