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1988 (1)
1Author    T. Hashimoto, M. Tori, Y. Asakawa, E. WollenweberRequires cookie*
 Title    Synthesis of Two Allergenic Constituents of Propolis and Poplar Bud Excretion  
 Abstract    The prenyl ester and the phenylethyl ester of caffeic acid, formed in the bud excretion of poplar species, were shown recently to be the major contact allergens in bee-glue. An unambiguous synthesis of these compounds, based on the reaction of caffeic acid with l-bromo-3-methyl-2-butene and with ß-bromoethylbenzene, respectively, is reported. The synthetic products confirm the previously described structures of the natural products and allow further testing of their allergenic properties. 
  Reference    Z. Naturforsch. 43c, 470—472 (1988); received January 25 1988 
  Published    1988 
  Keywords    Propolis, Contact Allergens, Prenyl Caffeate, Phenylethyl Caffeate, Synthesis 
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 TEI-XML for    default:Reihe_C/43/ZNC-1988-43c-0470_n.pdf 
 Identifier    ZNC-1988-43c-0470_n 
 Volume    43