Herein, we have investigated novel pyrimidine nucleosides bearing a 4’-carboxyl functionality (6-10, 13 and
15) as anti-HCV agents. In this new class of compounds, 7, 9, 10 and 15 demonstrated in vitro anti-HCV activity similar
to or better than a known anti-HCV drug, ribavirin. In this work, we also, surprisingly, identified a 3’-sulfoxide analog of
3’-thiacytidine (16), obtained as a side product during the synthesis of 15, as a potent inhibitor of HCV replication at the
concentration similar to that of ribavirin. No detectable in vitro cytotoxicity was observed for the investigated compounds
up to the highest concentration tested.
在此,我们研究了具有 4'- 羧基官能团的新型
嘧啶核苷(6-10、13 和 15)作为抗HCV 药物。在这一类新化合物中,7、9、10 和 15 的体外抗HCV 活性类似于或优于已知的抗HCV 药物
利巴韦林。在这项工作中,我们还意外地发现了一种 3'-thiacytidine 的 3'-sulfoxide 类似物(16),它是在合成 15 的过程中作为副产品获得的,是一种有效的 HCV 复制
抑制剂,其浓度与
利巴韦林相似。在测试的最高浓度范围内,未发现所研究化合物具有可检测到的体外细胞毒性。