2′-Deoxy-2′-alkoxylaminouridines: Novel 2′-substituted uridines prepared by intramolecular nucleophilic ring opening of 2,2′-O-anhydrouridines
作者:David P. Sebesta、Sarah S. O'Rourke、Rogelio L. Martinez、Wolfgang A. Pieken、Danny P.C. McGee
DOI:10.1016/0040-4020(96)00870-8
日期:1996.11
methodology developed for the stereo- and regiospecific introduction of structural modifications at the 2′-position of uridine nucleosides. A novel class of modified nucleosides, 2′-alkoxylamino-2′-deoxy uridines, are prepared by intramolecular nucleophilic addition of a 3′-tethered alkoxycarbamate nucleophile to the 2′-position with concomitant opening of a 2,2′-anhydrouridine.
天然和非天然修饰的核苷和核苷酸在生物学,医学和生物医学研究工具中都起着重要作用。本文报道的是开发用于在尿苷核苷的2'-位立体和区域特异性引入结构修饰的合成方法的应用。一类新的修饰核苷,即2'-烷氧基氨基-2'-脱氧尿苷,是通过将3'-拴链的烷氧基氨基甲酸酯亲核体分子内亲核加成到2'-位置,并同时打开2,2'-脱水尿苷来制备的。