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DOI: 10.1055/s-2008-1075305
Flavonoids from Iris songarica
The genus Iris is comprised of over 300 species and 20 are found in Iran [1,2]. Roots of I. songarica have been used to cure diarrhea in Pakistan [3]. This genus is rich in isoflavonoids which have a wide range of biological activities including anti-inflammatory, antioxidant and cancer chemopreventive properties [4]. Previous phytochemical studies on Iris revealed the presence of flavonoid, isoflavonoid, benzoquinone, triterpene, xanthone and stilbene derivatives [5]. A new dihydroflavonol, songaricol (1) and seven known flavonoids including three isoflavones, one flavone, one coumaranochromone and one peltoginoid were isolated from Iris songarica. Structure elucidation was achieved through extensive NMR and circular dichroism techniques. Acknowledgement: The work was supported by the financial support of Shiraz University of Medical Sciences, Shiraz, Iran. References: [1] Mazhari N (2000) Flora of Iran, Vol. 31. [2] Mozaffarian V (1996) Dictionary of Iranian plant names. [3] Ali SI, Matew B (1993) Iridaceae, Flora of Pakistan, Vol. 202. [4] Atta-ur-Rahman, et al. (2003) J. Ethnopharmacol. 86: 177–180. [5] Choudhary MI, et al. (2001) J. Nat. Prod. 64: 857–860.