Conjugation at the oligonucleotide level based on isoxazole phosphoramidites generated by click chemistry
作者:Colin Freeman、Aisling Ni Cheallaigh、Frances Heaney
DOI:10.1016/j.tet.2011.06.096
日期:2011.10
oxide–alkyne Huisgen cycloaddition for provision of chemically modified oligonucleotides has been extended; in a novel approach isoxazole conjugated oligodeoxyribonucleotides have been constructed by phosphoramidite chemistry of isoxazole derivatives previously generated by nitrile oxide–alkyne click chemistry. The conjugation involves manual solid phase synthesis at room temperature in aqueous ethanol
扩展了产生异恶唑的腈类-炔烃Huisgen环加成反应的多功能性,以提供化学修饰的寡核苷酸。通过一种新方法,异磷酰胺共轭的寡脱氧核糖核苷酸已经通过亚磷酰胺化学合成了以前由一氧化氮-炔烃点击化学产生的异恶唑衍生物。该缀合涉及在室温下在乙醇水溶液中的手动固相合成,并以高收率进行。