A process of stereoselectively synthesizing β-nucleoside of formula (I), e.g., 2'-deoxy-2,2'-difluorocytidine, is described. The process includes reacting a tetrahydrofuran compound of the following formula:
in which wherein R1, R2, R3, R4, and L as defined in the specification, with a nucleobase derivative in the presence of an oxidizing agent.
描述了一种立体选择性合成式(I)β-核苷(如 2'-脱氧-2,2'-二
氟胞嘧啶)的工艺。该工艺包括使下式的
四氢呋喃化合物反应:
其中 R1、R2、R3、R4 和 L 如说明书中所定义,在氧化剂存在下与核碱基衍
生物反应。