Structural determination of 3beta-stearyloxy-urs-12-ene from Maytenus salicifolia by 1D and 2D NMR and quantitative 13C NMR spectroscopy.

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorMiranda, Roqueline Rodrigues Silva de-
Autor(es): dc.creatorSilva, Gracia Divina de Fátima -
Autor(es): dc.creatorDuarte, Lucienir Pains-
Autor(es): dc.creatorFortes, Isabel Cristina Pereira-
Autor(es): dc.creatorVieira Filho, Sidney Augusto-
Data de aceite: dc.date.accessioned2025-08-21T15:24:38Z-
Data de disponibilização: dc.date.available2025-08-21T15:24:38Z-
Data de envio: dc.date.issued2017-04-26-
Data de envio: dc.date.issued2017-04-26-
Data de envio: dc.date.issued2006-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/7635-
Fonte completa do material: dc.identifierhttp://onlinelibrary.wiley.com/doi/10.1002/mrc.1734/abstract-
Fonte completa do material: dc.identifierhttps://doi.org/10.1002/mrc.1734-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1013679-
Descrição: dc.descriptionSix pentacyclic triterpenoids, 3b-stearyloxy-urs-12-ene (1), friedelin (2), 3b-friedelinol (3), a-amyrin (4), b-amyrin (5), and lupeol (6), have been isolated from the hexane extract of Maytenus salicifolia Reissek (Celastraceae) leaves. The molecular and structural formula as well as the stereochemistry of a new pentacyclic triterpene (1) were determined using data obtained from 1H and 13C NMR spectra, DEPT135 and by 2D HSQC, HMBC, COSY and NOESY experiments. The molecular formula C48H84O2 was established using quantitative 13C NMR, and the molecular weight (692 Da) was confirmed by elemental analysis and mass spectrometry (GC-MS).-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsrestrito-
Palavras-chave: dc.subjectCelastraceae-
Título: dc.titleStructural determination of 3beta-stearyloxy-urs-12-ene from Maytenus salicifolia by 1D and 2D NMR and quantitative 13C NMR spectroscopy.-
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