Structure−Antiviral Activity Relationship in the Series of Pyrimidine and Purine <i>N</i>-[2-(2-Phosphonomethoxy)ethyl] Nucleotide Analogues. 1. Derivatives Substituted at the Carbon Atoms of the Base
作者:Antonín Holý、Jaroslav Günter、Hana Dvořáková、Milena Masojídková、Graciela Andrei、Robert Snoeck、Jan Balzarini、Erik De Clercq
DOI:10.1021/jm9811256
日期:1999.6.1
the bases in the suitably modified intermediates bearing reactive functions at the base moiety. The diesters were converted to the corresponding monoesters by sodium azide treatment, while the free acids were obtained from the diester by successive treatment with bromotrimethylsilane and hydrolysis. None of the PME derivatives in the pyrimidine series, their 6-aza or 3-deaza analogues, exhibited any
通过对烷基进行烷基化制备一系列嘌呤和嘧啶N- [2-(膦甲氧基)乙基]衍生物的二烷基酯,其在嘌呤碱的位置2、6或8或在嘧啶碱的位置2、4或5。在氢化钠,碳酸铯或1,8-二氮杂双环[5,4,0]十一碳-7-烯(DBU)存在下的二甲基甲酰胺中,与2-氯乙氧基甲基膦酸酯二酯形成合适的杂环碱。通过在适当修饰的中间体上对碱基进行转化,获得额外的衍生物,该中间体在碱基部分具有反应性功能。通过叠氮化钠处理将二酯转化为相应的单酯,同时通过依次用溴代三甲基硅烷处理和水解从二酯中获得游离酸。嘧啶系列中没有PME衍生物,它们的6-氮杂或3-氮杂类似物,除5-溴胞嘧啶衍生物外,对测试的DNA病毒或逆转录病毒均表现出任何活性。Cl,F或OH基团取代了PMEA中2位的腺嘌呤环,从而降低了其对所有测试的DNA病毒的活性。在0.07-2 microg / mL的浓度范围(EC50)中,PMEDAP对HSV-1,HSV-2