Additional flavonoids from Lonchocarpus yucatanensis and L. xuul

Journal of the Brazilian Chemical Society

Borges-Argáez, Rocío¹  Centro de Investigación Científica de Yucatán, Yucatán, Mexico¹  Waterman, Peter G.¹  Peña-Rodríguez, Luis M.¹  Southern Cross University, Lismore, Australia¹  Díaz, Maria Esther Poot¹ 

关键词: Lonchocarpus xuul;    Lonchocarpus yucatanensis;    Leguminosae;    Flavanone;    N-methyl proline;    p-coumaric methyl ester;   

DOI  :  10.1590/S0103-50532005000600028

学科分类：化学（综合）

来源: SciELO

【 摘 要 】

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.

【 授权许可】

Unknown