[EN] PROCESS FOR THE PREPARATION OF ESTETROL<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION D'ESTÉTROL
申请人:CRYSTAL PHARMA SAU
公开号:WO2015040051A1
公开(公告)日:2015-03-26
The invention relates to a process for obtaining Estetrol or a salt or solvate thereof, the process comprising: a) reacting a compound of formula (IV) or a salt or solvate thereof, wherein R1 is a hydroxyl protecting group selected from a silyl ether, an ether, an ester, a carbamate and a carbonate, and R2 is a hydroxyl protecting group selected from an ether, with an oxidizing agent selected from OsO4 or a source of osmium tetroxide to produce Estetrol or a compound of formula (II) or a salt or solvate thereof wherein R1 is as defined previously; and b) if a compound of formula (II) is obtained in step a), deprotecting said compound to produce Estetrol.
该发明涉及一种获取Estetrol或其盐或溶剂化合物的方法,该方法包括:a) 反应化合物式(IV)或其盐或溶剂化合物,其中R1是从硅醚、醚、酯、氨甲酸酯和碳酸酯中选择的羟基保护基,R2是从醚中选择的羟基保护基,与从OsO4或四氧化锇的来源中选择的氧化剂反应,以产生Estetrol或化合物式(II)或其盐或溶剂化合物,其中R1如前所定义;b) 如果在步骤a)中获得化合物式(II),则去保护所述化合物以产生Estetrol。