A method for the preparation of ticagrelor of formula I, wherein the key reaction of the entire synthesis is condensation of an amino cyclopentane diol with pyrimidine, providing the isolated intermediate of formula IV. The amino cyclopentane diol is used for the reaction with pyrimidine without any protecting group on the hydroxyls in positions 1 and 2. Using the compound without a protecting group eliminates the necessity of deprotection in the subsequent synthetic steps.
一种制备式I的
替卡格雷的方法,其中整个合成的关键反应是
氨基
环戊烷二醇与
嘧啶的缩合反应,提供式IV的分离中间体。
氨基
环戊烷二醇用于与
嘧啶反应,1和2位上的羟基没有任何保护基。使用没有保护基的化合物可以消除后续合成步骤中的去保护步骤的必要性。