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'5' in keywords Facet   Publication Year 1990  [X]
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1990[X]
1Author    M. Iinuma, T. Tanaka, M. Mizuno, E. WollenweberRequires cookie*
 Title    Unusual Flavanone from Encelia stenophylla  
 Abstract    A flavanone with 3'-OH as the sole B-ring substituent has been reported recently as a leaf and stem exudate constituent o f Encelia stenophylla. The correctness o f this unusual substitution is confirmed by synthesis o f this flavanone. 
  Reference    Z. Naturforsch. 45c, 135 (1990); received October 9 1989 
  Published    1990 
  Keywords    5, 7, 3'-Trihydroxy Flavanone, Unusual Substitution, Synthesis, Structure Confirmation 
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 TEI-XML for    default:Reihe_C/45/ZNC-1990-45c-0135_n.pdf 
 Identifier    ZNC-1990-45c-0135_n 
 Volume    45 
2Author    Z. NaturforschRequires cookie*
 Title    Filippo Imperato  
 Abstract    A new pentaoxigenated xanthone has been iso­ lated from aerial parts o f the fern Cystopteris fra­ gilis. By spectroscopic and chemical methods this compound has been shown to be 1,6-dihydroxy-3,5,7-trimethoxyxanthone which is o f biosynthetic interest in ferns. 
  Reference    Z. Naturforsch. 45b, 1603—1604 (1990); received June 1 1990 
  Published    1990 
  Keywords    Cystopteris fragilis, Pteridophyta, Aspleniaceae, 1, 6-Dihydroxy-3, 5, 7-trimethoxyxanthone 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-1603_n.pdf 
 Identifier    ZNB-1990-45b-1603_n 
 Volume    45