The present invention relates to a stereoselective glycosylation for the preparation of 1,3-oxathiolane nucleoside in high yield and high optical purity. The invention specifically relates to a process of the preparation of Lamivudine and Emtricitabine using zirconium (IV) chloride (ZrCl4) as a catalyst in glycosylation.
本发明涉及一种立体选择性糖基化反应,用于高产率和高光学纯度制备1,3-噻烷核苷类化合物。该发明具体涉及使用
氯化
锆(ZrCl4)作为催化剂在糖基化反应中制备
拉米夫定和
恩曲他滨的方法。