Young, M. Claudia M.Araújo, Angela Regina [UNESP]Da Silva, Cristhiane A. [UNESP]Lopes, Márcia Nasser [UNESP]Trevisan, Ligia M. V. [UNESP]Bolzani, Vanderlan da Silva [UNESP]2014-05-272014-05-271998-07-01Journal of Natural Products, v. 61, n. 7, p. 936-938, 1998.0163-3864http://hdl.handle.net/11449/65463A novel triterpene; viburgenin (1), has been isolated from an extract of the ripe fruit rinds of Rudgea viburnioides, together with the known saponins, arjunglucoside I and trachelosperosides B-1 and E-l, and the triterpenes trachelosperogenin B (2) and arjungenin. Compound 2 was previously obtained as a product from enzymatic hydrolysis, and it is reported for the first time as a natural product. The structure of compound 1 was determined as 2α,3β,19α,23,24-pentahydroxyurs-12-ene by extensive use of 1D and 2D NMR spectroscopic methods. Compound 1 exhibited moderate antifungal activity against Cladosporium cladosporioides.936-938engmiconazolenystatinsaponintrachelosperogenin btriterpeneunclassified drugviburgeninantifungal activitybioassaybrazilcladosporiumdrug isolationfruithydrolysismass spectrometrynonhumannuclear magnetic resonance spectroscopyAntifungal AgentsBrazilChromatography, Thin LayerCladosporiumMagnetic Resonance SpectroscopyMass SpectrometryMicrobial Sensitivity TestsPlants, MedicinalSaponinsSpectrophotometry, InfraredSpectrophotometry, UltravioletTriterpenesCladosporium cladosporioidesRudgeaRudgea viburnioidesArtigo10.1021/np9704617WOS:000075175900015Acesso restrito2-s2.0-00319279340037579054083160331017089969394444840836852516730000-0001-7616-9652