A novel pentacyclic triterpene from Leontodon filii

Tostão, Z.; Noronha, J.P.; Cabrita, E.J.; Medeiros, J.; Justino, Jorge; Bermejo, J.; Rauter, A. P.

http://hdl.handle.net/10400.15/4533

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Abstract(s)

A 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.

Keywords

Leontodon filii fungicidal activity triterpenoid 2β,3β,15α,21β-Olean-12-ene-2,3,15,21-tetrol

URI

http://hdl.handle.net/10400.15/4533

Citation

Tostão, 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.2004.11.003