[EN] METHOD FOR THE PREPARATION OF HIGHLY PURE 1-ANDROSTENE DERIVATIVES<br/>[FR] PROCEDE POUR LA PREPARATION DE DERIVES DE 1-ANDROSTENE HAUTEMENT PURS
申请人:HANMI PHARM IND CO LTD
公开号:WO2005007670A1
公开(公告)日:2005-01-27
A method for preparing a 1-androstene derivative which comprises reacting a 2-iodo-androstane derivative with an oxidizing agent while maintaining the pH of the reaction mixture at a specific range gives the 1-androstene derivative with high purity and yield.