Synthesis and Antiviral Properties of Spirocyclic [1,2,3]-Triazolooxazine Nucleosides
作者:Antonio Dell'Isola、Matthew M. W. McLachlan、Benjamin W. Neuman、Hawaa M. N. Al-Mullah、Alexander W. D. Binks、Warren Elvidge、Kenneth Shankland、Alexander J. A. Cobb
DOI:10.1002/chem.201403560
日期:2014.9.8
efficient synthesis of spirocyclic triazolooxazine nucleosides is described. This was achieved by the conversion of β-D-psicofuranose to the corresponding azido-derivative, followed by alkylation of the primary alcohol with a range of propargyl bromides, obtained by Sonogashira chemistry. The products of these reactions underwent 1,3-dipolar addition smoothly to generate the protected spirocyclic adducts
描述了螺环三唑并恶嗪核苷的有效合成。这是通过将 β-D-psicofuranose 转化为相应的叠氮基衍生物,然后用 Sonogashira 化学获得的一系列炔丙基溴对伯醇进行烷基化来实现的。这些反应的产物顺利进行 1,3-偶极加成以生成受保护的螺环加合物。这些很容易脱保护,得到相应的核糖核苷。使用MHV(小鼠肝炎病毒)作为模型研究获得的化合物文库的抗病毒活性,其中衍生物3f显示出最有希望的活性和耐受性。