Data/hora: 11/06/2024 14:16:39

Provedor de dados: | 42
País: | Brazil
Título: | Chemical constituents from Vellozia graminifolia (Velloziaceae)
Autores: | Branco,Alexsandro; Pinto,Angelo C.; Braz Filho,Raimundo.
Data: | 2004-09-01
Ano: | 2004
Palavras-chave: | Vellozia graminifolia; Velloziaceae; Triterpenes; Diterpene; Flavonoids.
Resumo: | From the hexane and ethyl acetate extracts obtained from stems, roots and leaf sheaths of Vellozia graminifolia, a mixture of linear hydrocarbons, a mixture of pentacyclic triterpenes, five monoisoprenylated flavonoids and one labdane diterpene, (-)-ent-3beta-hydroxy-8(17)-labden-15-oic acid, were isolated. The linear hydrocarbons and minor triterpenes were identified in their corresponding mixtures by High Resolution Gas Chromatography (HRGC) and HRGC coupled to mass spectrometry. The major pentacyclic triterpenes and the diterpene were characterized by spectral data, including 2D NMR experiments, and chemical transformations.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000300005
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/S0001-37652004000300005
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.76 n.3 2004
Fonte: | info:eu-repo/semantics/openAccess