dc.creator | SILVA, Ana Paula Freitas da | |
dc.creator | PALMEIRA JUNIOR, Sebastião Ferreira | |
dc.creator | CONSERVA, Lucia Maria | |
dc.creator | GUILHON, Giselle Maria Skelding Pinheiro | |
dc.date | 2013-05-28T13:00:16Z | |
dc.date | 2013-05-28T13:00:16Z | |
dc.date | 1999-04 | |
dc.date.accessioned | 2023-09-28T15:48:03Z | |
dc.date.available | 2023-09-28T15:48:03Z | |
dc.identifier | SILVA, Ana Paula Freitas da, et al. Two Dibenzylbutyrolactol derivatives and other chemical constituents from Aristolochia peltato-deltoidea. Journal of the Brazilian Chemical Society, São Paulo, v. 10, n. 2, p. 122-126, mar./abr. 1999. Disponível em: <http://www.scielo.br/pdf/jbchs/v10n2/a09v10n2.pdf>. Acesso em: 27 maio 2013. <http://dx.doi.org/10.1590/S0103-50531999000200009>. | |
dc.identifier | 1678-4790 | |
dc.identifier | 0103-5053 | |
dc.identifier | http://repositorio.ufpa.br/jspui/handle/2011/3913 | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/9021434 | |
dc.description | The hexane extract from the aerial parts of Aristolochia peltato-deltoidea Hoehne (Aristolochiaceae) afforded two new epimeric lignans of the type dibenzylbutyrolactol, rel-(8R, 8 S, 9S)-3,4-dimethoxy-3 ,4 -methylenedioxy-9b-ethoxy- and rel-(8R, 8 S, 9R)-3,4-dimethoxy-3 ,4 -methylenedioxy-9a-ethoxy-lignans-8.8 ,9.O.9 , besides a benzofuran neolignan, known as eupomatenoid-7, a-tocopherylquinone, b-sitosterol and stigmasterol. From the chloroform extract were isolated two diastereomeric dibenzylbutyrolactone lignans: rel-(8R, 8 R)- and rel-(8R, 8 S)-3,4-dimethoxy-3 ,4 -methylenedioxy-9-oxo-lignans-8.8 ,9.O.9 . Chemical composition analysis by GC/MS of the non polar fractions from the hexane extract was also carried out and ten components were identified. The structures of the isolated compounds were elucidated utilizing spectrometric methods. | |
dc.description | Do extrato hexânico das partes aéreas de Aristolochia peltato-deltoidea Hoehne (Aristolochiaceae) foram isolados duas novas lignanas epiméricas do tipo dibenzilbutirolactol, rel-(8R, 8 S, 9S)-3,4-dimetoxi-3 ,4 -metilenodioxi-9b-etoxi- e rel-(8R, 8 S, 9R)-3,4-dimetoxi-3 ,4 -metilenodioxi-9a-etoxi-lignanas-8.8 ,9.O.9 , além da neolignana benzofurânica eupomatenóide-7, a-tocoferilquinona, b-sitosterol e estigmasterol. Do extrato clorofórmico foram isoladas duas lignanas dibenzilbutirolactonas diasteroisoméricas: rel-(8R, 8 R)- e rel-(8R, 8 S)-3,4-dimetoxi-3 ,4 -metilenodioxi-9-oxo-lignanas-8.8 ,9.O.9 . A composição química das frações apolares do extrato hexânico também foi analisada por CG/EM. Dentre os componentes detectados, dez foram identificados. As estruturas dos compostos isolados foram elucidadas utilizando-se métodos espectrométricos. | |
dc.format | application/pdf | |
dc.language | eng | |
dc.rights | Acesso Aberto | |
dc.subject | Análise química | |
dc.subject | Aristolochia peltato-deltoidea | |
dc.subject | Aristolochiaceae | |
dc.subject | Benzofuran neolignan | |
dc.subject | Dibenzylbutyrolactol lignans | |
dc.subject | A-tocopherylquinone | |
dc.subject | Ilha de Maçaranduba - PA | |
dc.subject | Pará - Estado | |
dc.subject | Amazônia brasileira | |
dc.title | Two Dibenzylbutyrolactol derivatives and other chemical constituents from Aristolochia peltato-deltoidea | |
dc.type | Artigo de Periódico | |