Method for the preparation of lariciresinol cyclolariciresinol and secoisolariciresinol
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United States of America Patent
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May 23, 2006
Grant Date -
Jan 27, 2005
app pub date -
Jan 7, 2003
filing date -
Jan 17, 2002
priority date (Note) -
Expired
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Abstract
A method for the preparation of lariciresinol, cyclolariciresinol or secoisolariciresinol, which method includes the steps of a) reducing hydroxymatairesinol to give 7-hydroxy-secoisolariciresinol, and b) subjecting the 7-hydroxy-secoisolariciresinol obtained in step a) to i) cyclization to give lariciresinol, or ii) cyclization to give cyclolariciresinol, or iii) catalytic hydrogenolysis to give secoisolariciresinol.
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