Aspartic acid based nucleoside phosphoramidate prodrugs as potent inhibitors of hepatitis C virus replication
作者:Munmun Maiti、Mohitosh Maiti、Jef Rozenski、Steven De Jonghe、Piet Herdewijn
DOI:10.1039/c5ob00427f
日期:——
an attempt to identify novel nucleoside phosphoramidate analogues for improving the anti-HCV activity, we have explored, for the first time, aspartic acid (Asp) and iminodiacetic acid (IDA) esters as amidate counterparts by considering three 2′-C-methyl containing nucleosides, 2′-C-Me-cytidine, 2′-C-Me-uridine and 2′-C-Me-2′-fluoro-uridine. Synthesis of these analogues required protection for the vicinal
鉴于对人类的持续威胁,抗丙型肝炎病毒(HCV)的核苷酸前药的开发被认为是许多药物化学领域的不懈努力。为了鉴定新颖的核苷氨基磷酸酯类似物以提高抗HCV活性,我们首次考虑了三个2'- C-甲基,探索了天冬氨酸(Asp)和亚氨基二乙酸(IDA)酯作为a酸酯的对应物。含有核苷,2' - C -Me-胞苷,2' - C -Me-尿苷和2'- C-Me-2'-氟尿苷。这些类似物的合成需要保护糖部分的邻二醇功能性和胞苷核苷的氨基,以在5'-羟基区域选择性地进行磷酸化反应。抗HCV数据表明,基于Asp的氨基磷酸酯的效力比亲本核苷高约550倍。Asp-ProTides的抑制活性高于Ala-ProTides,这表明Asp将成为开发新型抗病毒前药的潜在氨基酸候选物。