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1989 (1)
1Author    JohnL. Ingham, SatoshiT. Ahara, Seiji Shibaki, Junya MizutaniRequires cookie*
 Title    Isoflavonoids from the Root Bark of Piscidia erythrina and a Note on the Structure of Piscidone  
 Abstract    A m ethanolic extract of P iscidia erythrina root bark has been found to contain various isofla-vonoids including rotenone (rotenoid), lisetin (coum aronochrom one) and six known isoflavones (ichthynone, piscidone, piscerythrone, 2'-deoxypiscerythrone, 6'-prenylpiscerythrone and 3',5'-diprenylgenistein). The extract additionally yielded three new 5-hydroxyisoflavones (piscery-thrinetin, 2'-hydroxypiscerythrinetin and isow ighteone) and a previously unreported coum arono­ chrom one (8-prenyl-lisetin). A ll four com pounds were identified using a com bination o f spectro­ scopic (U V , M S, 'H NM R) and chemical m ethods. Although several other 5-hydroxyisoflavones were also isolated from the root bark extract, the quantities o f each were sufficient only to permit their partial characterization. Structure 2 for piscidone has been confirmed by 'H N M R spectros­ copy. 
  Reference    Z. Naturforsch. 44c, 905 (1989); received June 13 1989 
  Published    1989 
  Keywords    Legum inosae, Piscidia, Isoflavonoids, Isoflavones, C oum aronochrom one, Piscidone 
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 TEI-XML for    default:Reihe_C/44/ZNC-1989-44c-0905.pdf 
 Identifier    ZNC-1989-44c-0905 
 Volume    44