Disclosed are compounds of the formula
wherein
R
1
is hydrogen or an acyl group having 1 to 16 carbon atoms;
R
2
is a purine or pyrimidine base or an analogue or derivative thereof;
Z is O, S, S═O or SO
2
; and pharmaceutically acceptable derivatives thereof. Also, described are process for and intermediates of use in their preparation, pharmaceutical compositions containing these compounds, and the use of these compounds in the antiviral treatment of mammals.
本发明涉及的化合物的结构式如下:其中R1是氢或具有1至16个碳原子的酰基基团;R2是
嘌呤或
嘧啶碱基或其类似物或衍
生物;Z是O、S、S═O或SO2;以及其药学上可接受的衍
生物。还描述了用于制备这些化合物的过程和中间体,含有这些化合物的药物组合物,以及这些化合物在哺乳动物的抗病毒治疗中的使用。