Tostão, Z.Noronha, J.P.Cabrita, E.J.Medeiros, J.Justino, JorgeBermejo, J.Rauter, A. P.2023-09-122023-09-122005-03Tostão, Z.; Noronha, J.P.; Cabrita, E.J.; Medeiros, J.; Justino, J.; Bermejo, J. & Rauter, A.P. (2005). A novel pentacyclic triterpene from Leontodon filii. Fitoterapia, 76(2), 173-180. DOI:10.1016/j.fitote.2004.11.0030367-326Xhttp://hdl.handle.net/10400.15/4533A novel oleanene triterpenetetrol was isolated from the chloroform extract of the aerial parts of Leontodon filii. Its structure was shown to be 2β,3β,15α,21β-olean-12-ene-2,3,15,21-tetrol by chemical and spectroscopic methods. The fungicidal efficacy of the chloroform and methanol extracts of the plant was also evaluated, a protective effect being found against Plasmopara viticola, Botrytis cinerea, particularly powerful against Pyricularia oryzae.engLeontodon filiifungicidal activitytriterpenoid2β,3β,15α,21β-Olean-12-ene-2,3,15,21-tetroljournal article10.1016/j.fitote.2004.11.003