Synthesis and biological evaluation of 2-oxonicotinonitriles and 2-oxonicotinonitrile based nucleoside analogues
作者:Reham A.I. Abou-Elkhair、Ahmed H. Moustafa、Abdelfattah Z. Haikal、Ahmed M. Ibraheem
DOI:10.1016/j.ejmech.2013.12.055
日期:2014.3
emergence of new pathogens highlight the need for developing new therapeutic agents. We focused on 2-oxonicotinonitrile (2-ONN) as derivative of the natural product 2-pyridinone.1 Herein, we describe the synthesis of 2-ONNs bearing two aryl groups, which we coupled with organohalides, including three glycosyl bromides, to prepare the nucleoside analogues. Coupling occurred mostly at the 2-ONN ring nitrogen
耐药性和新病原体的出现突出了开发新治疗剂的必要性。我们专注于 2-氧代烟腈 (2-ONN) 作为天然产物 2-吡啶酮的衍生物。1在此,我们描述了带有两个芳基的 2-ONN 的合成,我们将其与有机卤化物(包括三种糖基溴化物)偶联以制备核苷类似物。偶联主要发生在 2-ONN 环氮上以产生目标目标,在少数情况下,它发生在 2-氧代位上,产生O-烷基化产物。游离 2-ONN 及其乙酰化核苷针对多种病毒进行了测试。核苷类似物2a Ac表现出良好的抗 SARS-CoV 和抗甲型流感(H 5 N 1) 活动。此外,7b对革兰氏阳性细菌枯草芽孢杆菌具有良好的活性。