Synthesis and properties of oligonucleotides that contain a triazole-linked nucleic acid dimer
作者:Tim C. Efthymiou、Jean-Paul Desaulniers
DOI:10.1002/jhet.532
日期:2011.5
needed to improve the properties of oligonucleotides. A practical synthesis for a triazole‐linked nucleoside dimer based on a PNA‐like structure has been developed. This involves synthesizing two uracil‐based monomers that contain either an azide or an alkyne functionality, followed by copper‐catalyzed 1,3‐dipolar cycloaddition. This dimer was incorporated within an oligonucleotide via phosphoramidite
在主链位点需要新的经化学修饰的寡核苷酸以改善寡核苷酸的性质。已经开发出了一种实用的合成方法,该方法是基于PNA样结构的三唑连接的核苷二聚体。这涉及到合成两个含有叠氮化物或炔烃官能团的基于尿嘧啶的单体,然后合成铜催化的1,3-偶极环加成反应。该二聚体通过亚磷酰胺化学作用被掺入寡核苷酸中,紫外线监测的热变性数据表明,相对于其靶互补序列而言,其轻微不稳定。这种经过化学修饰的二聚体可用于将来在基于DNA和RNA的应用中对其性质的研究。J.杂环化学。(2011)。