An NMR Study of Isoflavones Extracted from Belamcanda Chinensis

Chinese Journal of Magnetic Resonance ›› 2006, Vol. 23 ›› Issue (4): 443-449.

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An NMR Study of Isoflavones Extracted from Belamcanda Chinensis

QIU Ying-kun^1,2*; XU Bi-xia²; GAO Yu-bai²; LIU Ke^1,2

(1. School of Pharmacy, Yaitai University, Yantai 264005, China；
2. Shandong Luye Pharmacy Company Limited, Yantai 264003, China)

Received:2006-01-25 Revised:2006-04-28 Published:2006-12-05 Online:2009-12-05
Contact: QIU Ying-kun

Abstract

Abstract: The ethanol extract of Belamcanda chinensis was separated by different kinds of chromatography methods. Eleven isoflavones were isolated and their structures were determined by ¹H NMR, ¹³C NMR, HMBC, HSQC, ¹H-¹H COSY and NOESY. A new compound named isoiridin was identified. The ¹H and ¹³C chemical shifts of these compounds were assigned and the relationship between the substitute groups and the ¹H and ¹³C chemical shifts was discussed.

Key words: NMR, isoiridin, chemical shift, Belamcanda chinensis, isoflavones

CLC Number:

O641

QIU Ying-kun^1,2*; XU Bi-xia²; GAO Yu-bai²; LIU Ke^1,2. An NMR Study of Isoflavones Extracted from Belamcanda Chinensis
[J]. Chinese Journal of Magnetic Resonance, 2006, 23(4): 443-449.

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An NMR Study of Isoflavones Extracted from Belamcanda Chinensis

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