5-Substituted-2,4-diamino-6-[2-(phosphonomethoxy)ethoxy]pyrimidinesAcyclic Nucleoside Phosphonate Analogues with Antiviral Activity
作者:Dana Hocková、Antonín Holý、Milena Masojídková、Graciela Andrei、Robert Snoeck、Erik De Clercq、Jan Balzarini
DOI:10.1021/jm030932o
日期:2003.11.1
2,4-Diamino-6-hydroxypyrimidines substituted in position 5 by an allyl, benzyl, cyanomethyl, ethoxycarbonylmethyl, phenyl, cyclopropyl, or methyl group were prepared either by C5-alkylation or by formation of the pyrimidine ring by cyclization. Their alkylation with 2-[(diisopropoxyphosphoryl)methoxy]ethyl tosylate afforded N1- and O6-regioisomers that were separated and converted to the free phosphonic
通过C5-烷基化或通过环化形成嘧啶环来制备在5位上被烯丙基,苄基,氰基甲基,乙氧基羰基甲基,苯基,环丙基或甲基取代的2,4-二氨基-6-羟基嘧啶。它们与2-[(二异丙氧基磷酰基)甲氧基]乙基甲苯磺酸酯的烷基化得到N1-和O6-区域异构体,将其分离并通过用溴代三甲基硅烷处理然后水解而转化为游离膦酸。2,4-二氨基-6-[[[(二异丙氧基磷酰基)甲氧基]乙氧基]嘧啶与元素溴,N-氯代或N-碘代琥珀酰亚胺的反应得到相应的磷保护的5-溴-,5-氯-和- 5-碘衍生物。它们的脱保护得到2,4-二氨基-5-溴-和-5-氯-6- [2-(膦酰基甲氧基)乙氧基]嘧啶。2,还通过将5-溴化合物与AlMe(3)交叉偶联来合成4-二氨基-5-甲基-6- [2-(膦酰基甲氧基)乙氧基]嘧啶。这些化合物对DNA病毒(例如1型和2型单纯疱疹病毒),巨细胞病毒,水痘带状疱疹病毒和痘苗病毒的抑制活性较弱。相反,几种5-取