Inter alia, a process for the production of a nucleoside phosphorothioate derivative corresponding to the following general formula (I): ##STR1## characterized in that it comprises reacting a salt of a nucleoside H-phosphonate corresponding to the following general formula (II): ##STR2## with a thiol transfer agent corresponding to the following general formula (III): R.sup.2 --S--X (III) in the presence of a silylating agent and a base in a suitable solvent; and working-up the reaction mixture to isolate the desired product and change the counter-cation as desired; wherein M.sup.+ represents a suitable counter-cation; R.sup.1 represents an appropriate nucleoside or nucleoside analogue; R.sup.2 represents a desired protecting group, which may ultimately be removable by cleavage of its bond to the sulfur atom; and X represents a leaving group, is disclosed.
其中,揭示了一种生产与以下通式(I)相应的核苷酸
磷酸硫酯衍
生物的方法:##STR1## 其特征在于,在适当的溶剂中,在
硅基化试剂和碱的存在下,将以下通式(II)的核苷酸H-
膦酸盐与以下通式(III)的巯基转移剂进行反应:R.sup.2 --S--X(III),并处理反应混合物以分离所需的产物并根据需要更改反离子;其中M.sup.+表示适当的反离子;R.sup.1表示适当的核苷酸或核苷酸类似物;R.sup.2表示所需的保护基,最终可以通过断裂与
硫原子的键来去除;X表示离去基。