Antiviral activity of C-alkylated purine nucleosides obtained by cross-coupling with tetraalkyltin reagents
作者:Arthur A. Van Aerschot、Petros Mamos、Nancy J. Weyns、Satoru Ikeda、Erik De Clercq、Piet A. Herdewijn
DOI:10.1021/jm00072a013
日期:1993.10
2-, 6-, And 8-alkylated (methyl, ethyl, and vinyl) adenosine analogues were synthesized by a palladium-catalyzed cross-coupling of a tetraalkyltin with the halogenated purine nucleosides. The synthesis of the 8-substituted analogues was accomplished using a transient protection procedure. The 6-alkylated-9-beta-D-ribofuranosylpurines as well as 2-ethyladenosine were cytotoxic at relatively low concentrations
通过将四烷基锡与卤代嘌呤核苷进行钯催化的交叉偶联,可合成2-,6-和8-烷基化(甲基,乙基和乙烯基)的腺苷类似物。8-取代类似物的合成使用瞬态保护程序完成。6烷基化的9-β-D-呋喃呋喃糖基嘌呤以及2-乙基腺苷在相对较低的浓度(0.8-10微克/ mL)下具有细胞毒性。8-甲基腺苷是牛痘病毒的有效和选择性抑制剂,而8-乙基和8-乙烯基腺苷对呼吸道合胞病毒具有特异性抑制作用。8-Vinyladenosine显示出对单纯疱疹病毒(1型)的特殊活性。