Chemical constituents from Vellozia graminifolia (Velloziaceae)

Chemical constituents from Vellozia graminifolia (Velloziaceae)

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.

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Main Authors: Branco,Alexsandro, Pinto,Angelo C., Braz Filho,Raimundo
Format: Digital revista
Language:English
Published: Academia Brasileira de Ciências 2004
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000300005
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spelling oai:scielo:S0001-376520040003000052004-08-23Chemical constituents from Vellozia graminifolia (Velloziaceae)Branco,AlexsandroPinto,Angelo C.Braz Filho,Raimundo Vellozia graminifolia Velloziaceae triterpenes diterpene flavonoids 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.info:eu-repo/semantics/openAccessAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências v.76 n.3 20042004-09-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000300005en10.1590/S0001-37652004000300005
institution SCIELO
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Branco,Alexsandro
Pinto,Angelo C.
Braz Filho,Raimundo
spellingShingle Branco,Alexsandro
Pinto,Angelo C.
Braz Filho,Raimundo
Chemical constituents from Vellozia graminifolia (Velloziaceae)
author_facet Branco,Alexsandro
Pinto,Angelo C.
Braz Filho,Raimundo
author_sort Branco,Alexsandro
title Chemical constituents from Vellozia graminifolia (Velloziaceae)
title_short Chemical constituents from Vellozia graminifolia (Velloziaceae)
title_full Chemical constituents from Vellozia graminifolia (Velloziaceae)
title_fullStr Chemical constituents from Vellozia graminifolia (Velloziaceae)
title_full_unstemmed Chemical constituents from Vellozia graminifolia (Velloziaceae)
title_sort chemical constituents from vellozia graminifolia (velloziaceae)
description 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.
publisher Academia Brasileira de Ciências
publishDate 2004
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000300005
work_keys_str_mv AT brancoalexsandro chemicalconstituentsfromvelloziagraminifoliavelloziaceae
AT pintoangeloc chemicalconstituentsfromvelloziagraminifoliavelloziaceae
AT brazfilhoraimundo chemicalconstituentsfromvelloziagraminifoliavelloziaceae
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