Medicinal Plant

2012, v.3(01) 50-51

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First Identification and Isolation of Vanillic Acid from Tibetan Medicine Lespedeza davurica (Laxm.) Schindl.
First Identification and Isolation of Vanillic Acid from Tibetan Medicine Lespedeza davurica (Laxm.) Schindl.

摘要(Abstract):

[Objective]To study the chemical constituents in the aerial parts of Lespedeza davurica ( Laxm. ) Schindl. [Method]The chemical constituents were extracted by solvent method,isolated and purified by various chromatographic methods,and spectroscopic methods such as NMR were adopted to identify their structures. [Result] A total of six compounds were isolated from the aerial parts of Lespedeza davurica ( Laxm. ) Schindl. ,including kaempferol ( I) ,quercetin ( II) ,kaempferol 3-O-β-D-glucopyranoside ( III) ,rutin ( IV) ,vanillic acid ( V) and β-sitosterol ( VI) . [Conclusion]Compound V ( vanillic acid) was isolated from this plant for the first time.

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