Method for the preparation of lariciresinol cyclolariciresinol and secoisolariciresinol

摘要

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