申请人:ZHEJIANG HISUN PHARMACEUTICAL CO., LTD
公开号:US20160137683A1
公开(公告)日:2016-05-19
The present invention provides a method for preparing epirubicin and an intermediate adaptive to the method. The preparation method may include: reacting tert-Butyldimethylsilyl chloride with N-trifluoroacetyl adriamycin to obtain a first compound N-trifluoroacetyl-14-O-tert-Butyldimethylsilyl adriamycin; oxidizing the first compound to obtain a second compound 4′-ketone-N-trifluoroacetyl-14-O-tert-Butyldimethylsilyladriamycin; reducing the second compound to obtain a third compound N-trifluoroacetyl-14-O-tert-Butyldimethylsilyl epirubicin; and performing deprotection and hydrolysis reactions on the third compound to obtain epirubicin. The method of the present invention needs low cost, fewer reaction steps, provides high yield and high product purity, and avoids serious pollution caused by a bromination reaction in a conventional method.
本发明提供了一种制备依托泊甙的方法及适用于该方法的中间体。制备方法可能包括:将叔丁基二甲基硅氯与N-三氟乙酰阿霉素反应,得到第一化合物N-三氟乙酰-14-O-叔丁基二甲基硅基阿霉素;将第一化合物氧化,得到第二化合物4'-酮基-N-三氟乙酰-14-O-叔丁基二甲基硅基阿霉素;将第二化合物还原,得到第三化合物N-三氟乙酰-14-O-叔丁基二甲基硅基依托泊甙;并对第三化合物进行去保护和水解反应,得到依托泊甙。本发明方法成本低,反应步骤少,产率高,产品纯度高,并且避免了传统方法中溴化反应引起的严重污染。