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Journal of Asian Natural Products Research Volume 10, 2008 - Issue 12
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Original Articles

New isoflavones from Iris kashmiriana

Nighat Nazir Department of Chemistry, University of Kashmir, Srinagar, 190006, J&K, IndiaCorrespondence[email protected]
,
Surrinder Koul Biotechnology Division, Indian Institute of Integrative Medicine, Jammu, 180001, India
,
Mushtaq Ahmad Qurishi Department of Chemistry, University of Kashmir, Srinagar, 190006, J&K, India
,
Subhash Chandra Taneja Biotechnology Division, Indian Institute of Integrative Medicine, Jammu, 180001, India
,
Basant Purnima Instrumentation Division, Indian Institute of Integrative Medicine, Jammu, 180001, India
&
Ghulam Nabi Qazi Biotechnology Division, Indian Institute of Integrative Medicine, Jammu, 180001, India
Pages 1137-1141 | Received 27 Feb 2008, Accepted 04 Aug 2008, Published online: 22 Nov 2008
 
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Abstract

Phytochemical investigation of the rhizomes of Iris kashmiriana (Iridaceae) led to the isolation of three isoflavones characterized by 1D and 2D NMR, IR, UV, and MS as 4′-hydroxy-8-methoxy-6,7-methylenedioxyisoflavone (isonigricin, 1), 5,6-dihydroxy-4′,7-dimethoxyisoflavone (isoirisolidone, 2), and 5,7-dihydroxy-4′,6-dimethoxyisoflavone (irisolidone, 3). Compound 1 is a new isoflavone, while 2 is reported for the first time from a natural source.

Acknowledgements

One of the authors, Nighat Nazir, wishes to express her thanks to CSIR, New Delhi, for financial assistance in the form of Junior Research Fellowship.

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