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Natural Product Research
Formerly Natural Product Letters
Volume 20, 2006 - Issue 2
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Original Articles

Dalsympathetin – a new isoflavone gentiobioside from Dalbergia sympathetica (Dennst.)

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Pages 195-200 | Received 28 May 2004, Accepted 17 Dec 2004, Published online: 21 Aug 2006
 

Abstract

Two isoflavonoids isolated from Dalbergia sympathetica were identified as 5,4′-dihydroxy-7-methoxyisoflavone (1) (Prunetin) and Prunetin-4′-O-β-D-gentiobioside (2) (Dalsympathetin). The natural occurrence of Dalsympathetin is reported for the first time. The position of glycosylation in Dalsympathetin at 4′-position has been confirmed by 2D-NMR spectral studies.

Acknowledgements

The authors thank SIF, IISc, Bangalore, India for the NMR spectra, KFRI, Peechi, Trichur, India for identifying the plant material and Mr. K. Muralidharan, IdI, India for his help. One of the authors (CNM) thank R.D. Birla Smarak Kosh, Mumbai for the financial assistance during his Ph.D programme.

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