In search of Flavivirus inhibitors part 2: Tritylated, diphenylmethylated and other alkylated nucleoside analogues
作者:Milind Saudi、Joanna Zmurko、Suzanne Kaptein、Jef Rozenski、Johan Neyts、Arthur Van Aerschot
DOI:10.1016/j.ejmech.2014.02.011
日期:2014.4
hit 3′,5′-bistritylated uridine 1, a series of alkylated nucleoside analogues were synthesized and evaluated for their in vitro antiviral activities against dengue fever virus and yellow fever virus. Hereto, alkyl and aryl groups were attached at various positions of the sugar ring combined with subtle variation of the heterocyclic base. Among the new series of derivatives, 3′,5′-di-O-trityl-5-fluoro-2′-deoxyuridine
几种黄病毒,例如黄热病病毒和登革热病毒,会在人体内引起严重的致命感染。继我们最初的命中3',5'-双歧化尿苷1之后,合成了一系列烷基化核苷类似物,并评估了它们对登革热病毒和黄热病病毒的体外抗病毒活性。迄今为止,烷基和芳基连接在糖环的各个位置,并带有杂环碱基的细微变化。在新的衍生物系列中,3',5'- di- O-三苯甲基-5-氟-2'-脱氧尿苷(39)是该系列中最有效的衍生物,可抑制黄热病病毒和登革热病毒的复制,其50有效浓度百分比(EC 50)〜1μg/ mL,无明显细胞毒性。其他氟化衍生物被证明更具毒性。几乎所有具有3',5'-二-O-苯甲酰基-2'-脱氧尿苷(50)的二苯基甲基化嘧啶核苷都具有很强的低至1μg/ mL的细胞毒性作用。