Acyclic analogs of 2'-deoxynucleosides related to 9-[(1,3-dihydroxy-2-propoxy)methyl]guanine as potential antiviral agents
作者:John C. Martin、Gary A. Jeffrey、Danny P. C. McGee、Michael A. Tippie、Donald F. Smee、Thomas R. Matthews、Julien P. H. Verheyden
DOI:10.1021/jm00381a015
日期:1985.3
related in structure to 9-[(1,3-dihydroxy-2-propoxy)methyl]guanine (DHPG, 1) have been synthesized and evaluated for antiviral activity against herpes simplex virus type 1 (F strain). Additionally, the ability of these analogues to function as substrates for the virus-specified thymidine kinase was examined. Phosphorylation by this kinase is essential for antiviral activity. Although the acyclic 4-oxopyrimidine
合成了一系列与9-[(1,3-二羟基-2-丙氧基)甲基]鸟嘌呤(DHPG,1)结构相关的2'-脱氧核苷的无环类似物,并评估了其对1型单纯疱疹病毒的抗病毒活性。 (F株)。另外,检查了这些类似物充当病毒指定的胸苷激酶底物的能力。该激酶的磷酸化对于抗病毒活性至关重要。尽管无环4-氧代嘧啶核苷是该激酶的底物,但它们没有抗病毒活性。在嘌呤系列中,大多数结构上与DHPG类似的类似物确实表现出明显较低的抗病毒活性,这表明即使嘌呤取代基进行很小的修饰也会大大降低抗病毒能力。活性最高的试剂2,6-二氨基嘌呤27 仅被病毒激酶磷酸化差;因此,其活性最有可能是由于事先进行了酶促脱氨作用而生成了DHPG。在小鼠脑炎模型中对27种药物的评估显示,其效力几乎与DHPG(1)相同。