This invention relates to a process of stereoselectively synthesizing a β-nucleoside compound of formula (I):
wherein R1, R2, and B are as defined in the specification; each of R3 and R4, independently, is H or fluoro. The process includes reacting, in the presence of a transition metal salt, a tetrahydrofuran compound of formula (II):
wherein R1, R2, and L are as defined in the specification, with a nucleobase derivative; and each of R3 and R4, independently, is H or fluoro.
本发明涉及一种立体选择性合成β-核苷化合物的过程,其
化学式为(I):
其中,R1,R2和B如规范中所定义;R3和R4中的每个独立的是H或
氟。该过程包括在过渡
金属盐的存在下,将
化学式(II)的
四氢呋喃化合物:
其中,R1,R2和L如规范中所定义,与核碱基衍
生物反应;R3和R4中的每个独立的是H或
氟。