A process for producing saxagliptin of formula I that comprises a reaction of the intermediate of formula II, where Boc is tert-butyloxycarbonyl, with a silylating agent in the presence of a base, preferably pyridine, and the intermediate obtained this way is further dehydrated by means of phosphorus oxychloride in the presence of imidazole, producing Boc-saxagliptin of formula IV, which is converted to saxagliptin of formula I by deprotection in an acidic environment, a silylating agent which introduces the trimethyl silyl group being used.
一种生产式I saxagliptin的方法,包括将式II的中间体(其中Boc是叔丁氧羰基)与
硅化试剂在碱的存在下进行反应,优选为
吡啶,并通过
磷酰
氯在
咪唑的存在下进一步脱
水,产生式IV的Boc-saxagliptin中间体,该中间体在酸性环境中去保护后,使用引入三甲基
硅基的
硅化试剂转化为式I的saxagliptin。