An HIV Reverse Transcriptase-Selective Nucleoside Chain Terminator
作者:Andrew W. Fraley、Dongli Chen、Kenneth Johnson、Larry W. McLaughlin
DOI:10.1021/ja020639y
日期:2003.1.1
The synthesis of a 2',3'-dideoxynucleoside cytidine analogue, but one that lacks the O2-carbonyl, is described from 2-aminopyridine in an overall yield of 60%. The synthesis of the 2-pyridone C-nucleoside relies upon the use of a Heck-type coupling between an appropriately protected sugar glycal and the 5-iodo derivative of 2-aminopyridone. Upon conversion of the dideoxynucleoside to the corresponding
描述了从 2-氨基吡啶合成 2',3'-双脱氧核苷胞苷类似物,但没有 O2-羰基,总产率为 60%。2-吡啶酮C-核苷的合成依赖于在适当保护的糖聚糖和2-氨基吡啶酮的5-碘衍生物之间使用Heck型偶联。在双脱氧核苷转化为相应的 5'-三磷酸后,观察到类似物 ddNTP 是 HIV 逆转录酶的合理底物(对于模板 dG 残基),但不是小牛胸腺 DNA 聚合酶 α 或人类 DNA 的底物聚合酶β。对于人类线粒体 DNA 聚合酶,类似物的作用是作为不良底物。观察到的聚合酶选择性似乎源于 O2-羰基的缺失,