Two Dibenzylbutyrolactol Derivatives and Other Chemical Constituents from Aristolochia peltato-deltoidea
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Two Dibenzylbutyrolactol Derivatives and Other Chemical Constituents from Aristolochia peltato-deltoidea
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| Id. |
573191 |
| Idioma |
inglés
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| Titulo |
Two Dibenzylbutyrolactol Derivatives and Other Chemical Constituents from Aristolochia peltato-deltoidea |
| Autor(es) |
Silva,Ana Paula Freitas da
Palmeira Júnior,Sebastião Ferreira
Conserva,Lucia Maria
Guilhon,Giselle Maria S. Pinheiro
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| Localización |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531999000200009
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| Versión |
1.0 |
| Estado |
Final
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| Descripción |
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-9beta-ethoxy- and rel-(8R, 8?S, 9R)-3,4-dimethoxy-3?,4?-methylenedioxy-9alpha-ethoxy-lignans-8.8?,9.O.9?, besides a benzofuran neolignan, known as eupomatenoid-7, alpha-tocopherylquinone, beta-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.
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| Tipo |
text/html
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| Palabras clave |
Aristolochia peltato-deltoidea
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| Tipo de recurso |
journal article
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| Tipo de Interactividad |
Expositivo
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| Nivel de Interactividad |
muy bajo
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| Audiencia |
Estudiante
Profesor
Autor
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| Estructura |
Atomic |
| Coste |
no
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| Copyright |
sí
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| Formatos |
text/html
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| Requerimientos técnicos |
Browser: Any
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| Fecha de contribución |
23-may-2005 |
| Contacto |
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