[EN] A MANUFACTURING PROCESS OF ISOFLAVAN OR ISOFLAVENE DERIVATIVES<br/>[FR] PROCEDE DE PRODUCTION DE DERIVES D'ISOFLAVANE OU D'ISOFLAVENE
申请人:BICBIO CO LTD
公开号:WO2005037815A1
公开(公告)日:2005-04-28
The present invention relates to a method of synthesizing isoflavan and isoflavene derivatives of the Formula 1, which have the biological efficacy of antioxidation and protection against ultraviolet light. The method is effective and suitable for a mass production of isoflavan and isoflavene derivatives, which is a more convenient alternative preparation method compared to the isolation method by the extraction of plants, such as licorice, via troublesome preparative processes.
An efficient formal synthesis of (+/-)-glabridin was accomplished in 10 steps from resorcinol using Raney Ni to reduce carbon-carbon double bonds in alpha,beta-unsaturated carbonyl compound as the key step. [Supplementary materials are available for this article. Go to the publisher's online edition of Synthetic Communications (R) for the following free supplemental resource(s): Full experimental and spectral details.]