Chemical constituents from Ouratea floribunda: complete¹H and 13C NMR assignments of atranorin and its new acetyl derivative

Detalhes bibliográficos
Autor(a) principal: Carvalho,Mário G. de
Data de Publicação: 2000
Outros Autores: Carvalho,Geizi J. A. de, Braz-Filho,Raimundo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000200007
Resumo: Chromatographic fractionation of the hexane extract from the wood of Ouratea floribunda (Ochnaceae) afforded friedelin (1), friedelanol (2), lupeol (3) and the depside atranorin (4). The structure elucidation of the isolated compounds was performed by spectrometric analysis involving comparison with literature data. The unambiguous assignments of ¹H and 13C NMR data of atranorin 4 and its acetyl derivative 4a are reported for the first time and involved ¹H-¹H homonuclear (COSY and NOESY) and ¹H-13C heteronuclear (HMQC and HMBC) NMR experiments.
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spelling Chemical constituents from Ouratea floribunda: complete¹H and 13C NMR assignments of atranorin and its new acetyl derivativeOuratea floribundaOchnaceaeatranorinmonoacetylatranorinChromatographic fractionation of the hexane extract from the wood of Ouratea floribunda (Ochnaceae) afforded friedelin (1), friedelanol (2), lupeol (3) and the depside atranorin (4). The structure elucidation of the isolated compounds was performed by spectrometric analysis involving comparison with literature data. The unambiguous assignments of ¹H and 13C NMR data of atranorin 4 and its acetyl derivative 4a are reported for the first time and involved ¹H-¹H homonuclear (COSY and NOESY) and ¹H-13C heteronuclear (HMQC and HMBC) NMR experiments.Sociedade Brasileira de Química2000-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000200007Journal of the Brazilian Chemical Society v.11 n.2 2000reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532000000200007info:eu-repo/semantics/openAccessCarvalho,Mário G. deCarvalho,Geizi J. A. deBraz-Filho,Raimundoeng2000-10-23T00:00:00Zoai:scielo:S0103-50532000000200007Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2000-10-23T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Chemical constituents from Ouratea floribunda: complete¹H and 13C NMR assignments of atranorin and its new acetyl derivative
title Chemical constituents from Ouratea floribunda: complete¹H and 13C NMR assignments of atranorin and its new acetyl derivative
spellingShingle Chemical constituents from Ouratea floribunda: complete¹H and 13C NMR assignments of atranorin and its new acetyl derivative
Carvalho,Mário G. de
Ouratea floribunda
Ochnaceae
atranorin
monoacetylatranorin
title_short Chemical constituents from Ouratea floribunda: complete¹H and 13C NMR assignments of atranorin and its new acetyl derivative
title_full Chemical constituents from Ouratea floribunda: complete¹H and 13C NMR assignments of atranorin and its new acetyl derivative
title_fullStr Chemical constituents from Ouratea floribunda: complete¹H and 13C NMR assignments of atranorin and its new acetyl derivative
title_full_unstemmed Chemical constituents from Ouratea floribunda: complete¹H and 13C NMR assignments of atranorin and its new acetyl derivative
title_sort Chemical constituents from Ouratea floribunda: complete¹H and 13C NMR assignments of atranorin and its new acetyl derivative
author Carvalho,Mário G. de
author_facet Carvalho,Mário G. de
Carvalho,Geizi J. A. de
Braz-Filho,Raimundo
author_role author
author2 Carvalho,Geizi J. A. de
Braz-Filho,Raimundo
author2_role author
author
dc.contributor.author.fl_str_mv Carvalho,Mário G. de
Carvalho,Geizi J. A. de
Braz-Filho,Raimundo
dc.subject.por.fl_str_mv Ouratea floribunda
Ochnaceae
atranorin
monoacetylatranorin
topic Ouratea floribunda
Ochnaceae
atranorin
monoacetylatranorin
description Chromatographic fractionation of the hexane extract from the wood of Ouratea floribunda (Ochnaceae) afforded friedelin (1), friedelanol (2), lupeol (3) and the depside atranorin (4). The structure elucidation of the isolated compounds was performed by spectrometric analysis involving comparison with literature data. The unambiguous assignments of ¹H and 13C NMR data of atranorin 4 and its acetyl derivative 4a are reported for the first time and involved ¹H-¹H homonuclear (COSY and NOESY) and ¹H-13C heteronuclear (HMQC and HMBC) NMR experiments.
publishDate 2000
dc.date.none.fl_str_mv 2000-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000200007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532000000200007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532000000200007
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.11 n.2 2000
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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