Elsevier

Phytochemistry

Volume 15, Issue 9, 1976, Pages 1411-1412
Phytochemistry

6a-hydroxypterocarpans from red clover

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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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