Xanthones and Coumarins from Kielmeyera lathrophyton

Detalhes bibliográficos
Autor(a) principal: Guedes, Maria L. S.
Data de Publicação: 2001
Outros Autores: Cruz, Frederico Guare, Silva Neto, José T. da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/14681
Resumo: p. 117-122
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spelling Guedes, Maria L. S.Cruz, Frederico GuareSilva Neto, José T. daGuedes, Maria L. S.Cruz, Frederico GuareSilva Neto, José T. da2014-02-21T18:56:19Z2014-02-21T18:56:19Z20010103-5053http://repositorio.ufba.br/ri/handle/ri/14681v. 12, n. 1p. 117-122Do extrato hexânico de Kielmeyera lathrophyton foram isoladas duas novas xantonas, 1,5 -diidroxi -6' -metil -6' -(4 -metil -3 -pentenil) -pirano(2',3':3,2) -xantona, 1,7 -diidroxi -6' -metil -6' -(4 -metil -3-pentenil) -pirano(2',3':3,2) -xantona. Uma terceira xantona, a 2,3 -metilenodioxixantona, teve a atribuição dos dados de RMN de 13C revista. Foram isoladas ainda seis cumarinas sendo duas delas inéditas, 7 -hidroxi -8 -(3 -metil -1 -oxobutil) -4 -s -butil -6',6' -dimetilpirano(2',3':5,6) -cumarina e 7 -hidroxi -8 -(2 -metil -1 -oxobutil) -4 -s -butil -6',6'dimetilpirano(2',3':5,6) -cumarina. Além dessas substâncias foram isolados ainda o d-tocotrienol, a friedelina, o 24a -etilcolest -5 -en -3 -ona e o 24a -etilcolest -5,22 -dien -3 -ol. Estes compostos foram identificados através de suas propriedades espectroscópicas e por comparação de seus dados espectroscópicos com dados da literatura. Three xanthones and six coumarins were isolated from the hexane extract of the stems of Kielmeyera lathrophyton, among them two new prenylated xanthones 1,5-dihydroxy -6'-methyl -6' -(4-methyl -3-pentenyl) -pyrano(2',3':3,2) -xanthone, 1,7 -dihydroxy -6' -methyl -6' -(4 -methyl -3 -pentenyl) -pyrano(2',3':3,2) -xanthone, and two new 4 -s -butylcoumarins 7 -hydroxy -8 -(3-methyl -1 -oxobutyl) -4 -s -butyl -6',6' -dimethylpyrano (2',3':5,6) -coumarin, 7 -hydroxy -8 -(2-methyl -1 -oxobutyl) -4 -s -butyl -6',6' -dimethylpyrano (2',3':5,6) -coumarin, along with the compounds, d -tocotrienol, friedelin, 24a -ethylcholest -5 -en -3 -one, and , 24a -ethylcholest -5,22 -dien -3 -ol. These compounds were identified by comparison with literature data, and their spectroscopic properties.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-02-05T11:34:01Z No. of bitstreams: 1 Maria L. S. Guedes.pdf: 49340 bytes, checksum: ed9adf6a0606c0c5a7afb4faaa39e3dd (MD5)Approved for entry into archive by Alda Lima da Silva (sivalda@ufba.br) on 2014-02-21T18:56:19Z (GMT) No. of bitstreams: 1 Maria L. S. Guedes.pdf: 49340 bytes, checksum: ed9adf6a0606c0c5a7afb4faaa39e3dd (MD5)Made available in DSpace on 2014-02-21T18:56:19Z (GMT). No. of bitstreams: 1 Maria L. S. Guedes.pdf: 49340 bytes, checksum: ed9adf6a0606c0c5a7afb4faaa39e3dd (MD5) Previous issue date: 2001http://dx.doi.org/10.1590/S0103-50532001000100016reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAKielmeyera lathrophytonGuttiferaeXanthones4-alkylcoumarins4-phenylcoumarinsNeoflavonoidsXanthones and Coumarins from Kielmeyera lathrophytonJournal of the Brazilian Chemical Societyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBrasilinfo:eu-repo/semantics/openAccessengLICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/14681/2/license.txtff6eaa8b858ea317fded99f125f5fcd0MD52ORIGINALMaria L. S. Guedes.pdfMaria L. S. Guedes.pdfapplication/pdf49340https://repositorio.ufba.br/bitstream/ri/14681/1/Maria%20L.%20S.%20Guedes.pdfed9adf6a0606c0c5a7afb4faaa39e3ddMD51TEXTMaria L. S. Guedes.pdf.txtMaria L. S. 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dc.title.pt_BR.fl_str_mv Xanthones and Coumarins from Kielmeyera lathrophyton
dc.title.alternative.pt_BR.fl_str_mv Journal of the Brazilian Chemical Society
title Xanthones and Coumarins from Kielmeyera lathrophyton
spellingShingle Xanthones and Coumarins from Kielmeyera lathrophyton
Guedes, Maria L. S.
Kielmeyera lathrophyton
Guttiferae
Xanthones
4-alkylcoumarins
4-phenylcoumarins
Neoflavonoids
title_short Xanthones and Coumarins from Kielmeyera lathrophyton
title_full Xanthones and Coumarins from Kielmeyera lathrophyton
title_fullStr Xanthones and Coumarins from Kielmeyera lathrophyton
title_full_unstemmed Xanthones and Coumarins from Kielmeyera lathrophyton
title_sort Xanthones and Coumarins from Kielmeyera lathrophyton
author Guedes, Maria L. S.
author_facet Guedes, Maria L. S.
Cruz, Frederico Guare
Silva Neto, José T. da
author_role author
author2 Cruz, Frederico Guare
Silva Neto, José T. da
author2_role author
author
dc.contributor.author.fl_str_mv Guedes, Maria L. S.
Cruz, Frederico Guare
Silva Neto, José T. da
Guedes, Maria L. S.
Cruz, Frederico Guare
Silva Neto, José T. da
dc.subject.por.fl_str_mv Kielmeyera lathrophyton
Guttiferae
Xanthones
4-alkylcoumarins
4-phenylcoumarins
Neoflavonoids
topic Kielmeyera lathrophyton
Guttiferae
Xanthones
4-alkylcoumarins
4-phenylcoumarins
Neoflavonoids
description p. 117-122
publishDate 2001
dc.date.issued.fl_str_mv 2001
dc.date.accessioned.fl_str_mv 2014-02-21T18:56:19Z
dc.date.available.fl_str_mv 2014-02-21T18:56:19Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufba.br/ri/handle/ri/14681
dc.identifier.issn.none.fl_str_mv 0103-5053
dc.identifier.number.pt_BR.fl_str_mv v. 12, n. 1
identifier_str_mv 0103-5053
v. 12, n. 1
url http://repositorio.ufba.br/ri/handle/ri/14681
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.country.fl_str_mv Brasil
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1590/S0103-50532001000100016
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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