Duas novas flavanonas naturais, 5-hidroxi-6,7-(2”,2”-dimetilcromeno)flavanone (1) e 5-metoxi- 3-hidroxi-6,7-(2”,2”-dimetilcromeno)flavanone (2), foram isoladas dos extratos das raízes de L. yucatanensis e L. xuul, respectivamente. Adicionalmente, quatro novos metabólitos, os flavanóides glicosídicos quercetina-3-ramnoglucosídeo e caempferol-3-ramnoglucosídeo, juntamente com 4- hidroxi-N-metil-prolina, e o éster metílico do ácido p-cumárico, foram isolados pela primeira vez das folhas de L. xuul. Os metabólitos foram identificados usando os dados espectroscópicos obtidos e pela comparação desses com aqueles encontrados na literatura. Two new natural flavanones, 5-hydroxy-6,7-(2”,2”-dimethylchromene)flavanone (1) and 5- methoxy-3-hydroxy-6,7-(2”,2”-dimethylchromene)flavanone (2), were isolated from the root extracts of L. yucatanensis and L. xuul, respectively. Additionally, four known metabolites, the glycosidic flavonoids quercetin-3-rhamnoglucoside and kaempferol-3-rhamnoglucoside, together with 4- hydroxy-N-methyl-proline, and p-coumaric acid methyl ester, were isolated for the first time from the leaves of L. xuul. The various metabolites were identified on the basis of their spectroscopic data and by comparison with those reported in the literature.
Journal article
Additional flavonoids from Lonchocarpus yucatanensis and L. xuul
Journal of the Brazilian Chemical Society, Vol.16(5), pp.1078-1081
2005
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Abstract
Details
- Title
- Additional flavonoids from Lonchocarpus yucatanensis and L. xuul
- Creators
- Rocio Borges-Argaez - Centro de Investigación Científica de YucatánMaria Esther Poot Diaz - Centro de Investigación Científica de YucatánPeter G Waterman - Southern Cross UniversityLuis M Pena-Rodriguez - Centro de Investigación Científica de Yucatán
- Publication Details
- Journal of the Brazilian Chemical Society, Vol.16(5), pp.1078-1081
- Identifiers
- 1048; 991012821975202368
- Academic Unit
- Southern Cross Plant Science
- Resource Type
- Journal article