Process for the synthesis of vitamin d compounds and intermediates for the synthesis of the compounds
申请人:Kashiwagi Hirotaka
公开号:US20070135394A1
公开(公告)日:2007-06-14
An object of the present invention is to provide a process for synthesizing a vitamin D compound by simple procedures at lower costs. The present invention provides a process for preparing a vitamin D compound and an intermediate thereof, comprising the step of: (a) mixing a ketone or aldehyde, a Wittig reagent, and a base; or (b) mixing a ketone or aldehyde and a Wittig reagent, and then adding a base to the resulting mixture.