<scp>Catalyst‐Free</scp>
Regio‐ and Diastereoselective Synthesis of Heterocyclic Nucleosides in the Eco‐friendly Solvent
<scp>2‐Methyltetrahydrofuran</scp>
<sup>†</sup>
作者:Xiaodong Gu、Qingwei Du、Weijian Song、Jun Joelle Wang
DOI:10.1002/cjoc.202200550
日期:2023.1.15
heterocyclic nucleosides is developed by a catalyst-free highly regioselective and diastereoselective [3+2] annulation of α-purine-substituted acrylates with nitrones. The reaction operates with excellent functional group tolerance, very mild reaction conditions, and with the green, sustainable, and eco-friendly 2-methyltetrahydrofuran (2-MeTHF) as solvent. Compared with other reactions of electron-deficient
通过 α-嘌呤取代的丙烯酸酯与硝酮的无催化剂高度区域选择性和非对映选择性 [3+2] 环化,开发了一种高效实用的杂环核苷合成方法。该反应具有优异的官能团耐受性、非常温和的反应条件,并以绿色、可持续和环保的 2-甲基四氢呋喃 (2-MeTHF) 作为溶剂。与缺电子烯烃亲偶极试剂与硝酮的其他反应相比,在该工作中观察到不同的区域选择性环加成产物。这种 1,3-偶极环加成反应生成了一系列异恶唑烷基核苷,收率非常好,在生物化学和药物化学中具有广阔的应用前景。