Flavonoids from Lonchocarpus muehlbergianus
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| Format: | Artículo científico |
| Sprache: | en |
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Academia Brasileira de Ciências
2004
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| _version_ | 1876448937927245824 |
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| author | Aderbal F. Magalhães |
| author_facet | Aderbal F. Magalhães |
| contents | Flavonoids from Lonchocarpus muehlbergianus Aderbal F. Magalhães Ana M.G.A. Tozzi Eva G. Magalhães Ivani S. Blanco Maria Del Pilar C. Soriano Multidisciplinaria (Ciencias Naturales y Exactas) flavans flavonoids Leguminosae Lonchocarpus muehlbergianus The light petroleum extract from the roots of Lonchocarpus muehlbergianus Hassl contained nine flavonoids,including six new ones. These are 2,4-cis-2,4,5,8-tetramethoxy-(2´´,3´´:6,7)-furanoflavan; 2,4-cis-4-hydroxy-2,5,8-trimethoxy-(2´´,3´´:6,7)-furanoflavan; 2,4-cis-2-prenyloxy-4,5,8-trimethoxy-(2´´,3´´:6,7)-furanoflavan;2,4-cis-2-prenyloxy-4-hydroxy-5,8-dimethoxy-(2´´,3´´:6,7)-furanoflavan; 2,5,6-trimethoxy-9-(1,1-dimethylallyoxy)-[2´´,3´´:3´,4´]-furanochalcone; 5,6-dimethoxy-(2´´,3´´:7,8)-furanoflavone, identi-fied by analysis of their spectral data (UV, IR, 1H and 13C NMR, 2D-NMR, NOE and MS). The naturaloccurrence of 2,4-dioxygenated flavan derivatives is being reported for the first time.Quantitative analysis of the petrol extract, by using reversed-phase HPLC, showed that the most abundantflavonoid in the extract is 2,4-cis-2,4,5,8- tetramethoxy-(2´´,3´´:6,7)-furanoflavan. 2004 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32776404 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.4 Vol.76 |
| format | Artículo científico |
| id | redalyc_32776404 |
| institution | Redalyc |
| language | en |
| publishDate | 2004 |
| publisher | Academia Brasileira de Ciências |
| spellingShingle | Flavonoids from Lonchocarpus muehlbergianus Aderbal F. Magalhães Multidisciplinaria (Ciencias Naturales y Exactas) flavans flavonoids Leguminosae Lonchocarpus muehlbergianus Flavonoids from Lonchocarpus muehlbergianus Aderbal F. Magalhães Ana M.G.A. Tozzi Eva G. Magalhães Ivani S. Blanco Maria Del Pilar C. Soriano Multidisciplinaria (Ciencias Naturales y Exactas) flavans flavonoids Leguminosae Lonchocarpus muehlbergianus The light petroleum extract from the roots of Lonchocarpus muehlbergianus Hassl contained nine flavonoids,including six new ones. These are 2,4-cis-2,4,5,8-tetramethoxy-(2´´,3´´:6,7)-furanoflavan; 2,4-cis-4-hydroxy-2,5,8-trimethoxy-(2´´,3´´:6,7)-furanoflavan; 2,4-cis-2-prenyloxy-4,5,8-trimethoxy-(2´´,3´´:6,7)-furanoflavan;2,4-cis-2-prenyloxy-4-hydroxy-5,8-dimethoxy-(2´´,3´´:6,7)-furanoflavan; 2,5,6-trimethoxy-9-(1,1-dimethylallyoxy)-[2´´,3´´:3´,4´]-furanochalcone; 5,6-dimethoxy-(2´´,3´´:7,8)-furanoflavone, identi-fied by analysis of their spectral data (UV, IR, 1H and 13C NMR, 2D-NMR, NOE and MS). The naturaloccurrence of 2,4-dioxygenated flavan derivatives is being reported for the first time.Quantitative analysis of the petrol extract, by using reversed-phase HPLC, showed that the most abundantflavonoid in the extract is 2,4-cis-2,4,5,8- tetramethoxy-(2´´,3´´:6,7)-furanoflavan. 2004 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32776404 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.4 Vol.76 |
| title | Flavonoids from Lonchocarpus muehlbergianus |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) flavans flavonoids Leguminosae Lonchocarpus muehlbergianus |
| url | https://www.redalyc.org/articulo.oa?id=32776404 |