Patent ID: 6489514
Filing Date: 2002-12-03
Classification: A61P,C07B,C07C

Abstract:
A process for isolation of (âˆ’)-Secoisolariciresinol from the plant Stereospermum personatum, said process comprising the steps of:a) extracting dried wood powder of Stereospermum personatum with hexane; b) extracting the residue from step (a) with chloroform; c) concentrating the chloroform solution from step (b) under vacuum; d) absorbing the dark brown extract on a silicagel (60-120mesh) and loaded on silicagel (60-120 mesh) column (4 cm dia to height of 100 cm); e) eluting the column with chloroform methanol gradient, and f) collecting the eluted fraction with 3% methanol in chloroform and concentrating the fraction to obtain pure (âˆ’)-Secoisolariciresinol.