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KMID : 0903520070500040344
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
2007 Volume.50 No. 4 p.344 ~ p.347
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Flavone Glycosides from the Aerial Parts of Lespedeza cuneata G. Don
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Kwon Dong-Joo
Kim Jin-Kyu
Ham Yeon-Ho
Bae Young-Soo
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Abstract
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The aerial parts of Lespedeza cuneata were collected, air-dried and extracted with 95% aqueous EtOH. Then it was successively partitioned with n-hexane, CH2Cl2, EtOAc and H2O. Repeated Sepha- dex LH-20 column chromatography on the EtOAc- and H2O-soluble fractions gave four compounds. Their structures were elucidated as quercetin (1), kaempferol (2), desmodin (3) and homoadonivernith (4) on the basis of spectroscopic evidences such as 1 H-NMR, 13 C-NMR, 2D-NMR and MS spectrum. Desmodin (3) and homoadonivernith (4) have not been reported from this plant so far.
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KEYWORD
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Lespedeza cuneata, aerial part, desmodin, homoadonivernith, flavone glycosides
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