Method for the preparation of enterolactone from matairesinol
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United States of America Patent
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Issued Date -
Feb 17, 2005
app pub date -
Jun 18, 2004
filing date -
Feb 5, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
This invention concerns a method for the preparation of enterolactone. The method is characterized by the steps of a) transforming the phenolic hydroxyl groups of matairesinol to groups R, which are removable by hydrogenolysis, to give Compound B in Scheme 1, b) substituting the groups R in Compound B in Scheme 1 with hydrogen, to give bis-3,3'-O-methylenterolactone (Compound C), and c) converting the methoxy groups in bis-3,3'-O-methylenterolactone to hydroxyl groups to give enterolactone. The invention concerns also a new group of compounds having the formula of Compound B in Scheme 1.
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