Methods for stereoselective synthesis and manufacturing of 2′-deoxynucleosides, such as 2′-ribonucleosides, are disclosed. In some embodiments, the 2′-deoxynucleoside is a β-anomer of a 2′-deoxynucleoside having a 3′ α hydroxyl, 4′ β hydroxymethyl configuration. Nonlimiting examples of compounds prepared by the disclosed methods include 4′-thio-2′-deoxycytidine (T-dCyd) and 5-aza-4′-thio-2′-deoxycytidine (5-aza-T-dCyd; aza-T-dCyd; aza-T-dC).
本发明公开了立体选择性合成和制造 2′-脱氧核苷(如 2′-
核糖核苷)的方法。在某些实施方案中,2′-脱氧核苷是具有 3′ α羟基、4′ β羟甲基构型的 2′-脱氧核苷的 β-异构体。用所公开的方法制备的化合物的非限制性实例包括 4′-
硫代-2′-脱氧
胞苷(T-dCyd)和 5-氮杂-4′-
硫代-2′-脱氧
胞苷(5-氮杂-T-dCyd;氮杂-T-dCyd;氮杂-T-dC)。