Bis‐Ketol Nucleoside Triesters as Prodrugs of the Antiviral Nucleoside Triphosphate Analogues of 3′‐Deoxythymidine and 3′‐Deoxy‐2′,3′‐didehydrothymidine
作者:Kim C. Calvo、Xiaohong Wang、Gerald F. Koser
DOI:10.1081/ncn-120030723
日期:2004.12.31
Derivatives of 3'-deoxythymidine (ddT) and 3'-deoxy-2',3'-didehydrothymidine (d4T) were prepared in which the 5'-hydroxyl group of the nucleoside was esterified to a bis-ketol phosphate. The resulting phosphate triesters are postulated to be prodrugs of the corresponding 5'-mononucleotides, which are formed intracellularly by the hydrolysis of the two ketol ester groups. The triesters were tested for
制备3'-脱氧胸苷(ddT)和3'-脱氧-2',3'-二氢胸苷(d4T)的衍生物,其中核苷的5'-羟基被酯化为双-酮磷酸酯。假定所得的磷酸三酯为相应的5'-单核苷酸的前药,其通过两个酮醇酯基团的水解在细胞内形成。测试该三酯的抗HIV活性,结果是,与亲本核苷相比,衍生自ddT的三酯显示出增强的抗病毒活性。