Isoflavonoid Glycosides from the Rhizomes of Iris germanica |
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Authors: | Atta‐ur‐Rahman Shama Nasim Irfan Baig Ilkay Orhan Bilge Sener Filiz Ayanoglu MIqbal Choudhary |
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Institution: | Atta‐ur‐Rahman,Shama Nasim,Irfan Baig,Ilkay Orhan,Bilge Sener,Filiz Ayanoglu,M. Iqbal Choudhary |
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Abstract: | Five new di‐ and triglycosides, irigenin 7‐O‐β‐D ‐glucopyranosyl‐(1→6)‐β‐D ‐glucopyranoside] ( 1 ), 6‐hydroxygenistein 4′‐O‐β‐D ‐glucopyranosyl‐(1→6)‐β‐D ‐glucopyranoside] ( 2 ), nigricin 4′‐O‐β‐D ‐glucopyanosyl‐(1→6)‐β‐D ‐glucopyranoside] ( 3 ), nigricin 4′‐O‐β‐D ‐glucopyanosyl‐(1→2)‐O‐α‐L ‐rhamnopyranosyl‐(1→6)]‐β‐D ‐glucopyranoside] ( 4 ), and 7‐{4′‐{2″‐O‐(4′′′′‐acetyl‐2′′′′‐methoxyphenyl)‐β‐D ‐glucopyranosyl]oxy}‐3′‐(β‐D ‐glucopyranosyloxy)phenyl]‐9‐methoxy‐8H‐1,3‐dioxolo4,5‐g]‐1 benzopyran‐8‐one‐] ( 5 ), along with a known compound, nigricin 4′‐(β‐D ‐glucopyranoside) ( 6 ), were isolated from the rhizomes of Iris germanica. The structures of these compounds were established by spectroscopic methods, including 2D NMR spectroscopic techniques. |
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