Additional Flavonoids from Lonchocarpus yucatanensis and L. xuul
نویسندگان
چکیده
Duas novas flavanonas naturais, 5-hidroxi-6,7-(2”,2”-dimetilcromeno)flavanone (1) e 5-metoxi3-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 4hidroxi-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.
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