The present invention relates to a process conducted in a single reaction vessel for producing a dioxolane nucleoside analogue of formula I or a pharmaceutically acceptable salt thereof; the process comprising the steps of adding a Lewis acid, a silylating agent and a non-silylated purine or pyrimidine base or an analogue thereof to a dioxolane of formula II. The invention also provides a process for producing a dioxolane compound of formula III; by reacting a dioxolane compound of formula IV in a suitable solvent in the presence of DIB and I
2
, using a suitable source of energy.
本发明涉及一种在单一反应容器中进行的过程,用于生产式I的
二氧六环核苷类似物或其药学上可接受的盐;该过程包括向式II的
二氧六环中加入一种Lewis酸,一种
硅基化剂和一种非
硅基化的
嘌呤或
嘧啶碱基或其类似物的步骤。本发明还提供了一种生产式III的
二氧六环化合物的方法;通过在适当的溶剂中,在DIB和I2的存在下,使用适当的能源反应式IV的
二氧六环化合物。