6a-hydroxypterocarpans from red clover |
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| Authors: | John N Bilton Julian R Debnam Ian M Smith |
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| Institution: | Depts of Chemistry and Botany, Imperial College of Science and Technology, London SW7, England |
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| Abstract: | Pisatin and homopisatin have been identified as antifungal compounds in red clover infected with either Botrytis cinerea, a non-pathogen, or Sclerotinia trifoliorum a clover pathogen. In addition 6a- hydroxymaackiain and 6a-hydroxymedicarpin have been detected. In vitro experiments have established that Sclerotinia can convert both maackiain and medicarpin to their respective 6a-hydroxylated products. |
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| Keywords: | Leguminosae red clover antifungal pterocarpans fungal mediated hydroxylation |
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