Extension of furopyrimidine nucleosides with 5-alkynyl substituent: Synthesis, high fluorescence, and antiviral effect in the absence of free ribose hydroxyl groups
作者:Renata Kaczmarek、Dylan J. Twardy、Trevor L. Olson、Dariusz Korczyński、Graciela Andrei、Robert Snoeck、Rafał Dolot、Kraig A. Wheeler、Roman Dembinski
DOI:10.1016/j.ejmech.2020.112884
日期:2021.1
6-p-tolyl-5-iodo-2′-deoxyribofuranosyl-furo[2,3-d]pyrimidin-2-one, was confirmed by X-ray crystallography, and its conformation was compared to related nucleosides. Diverse alkynyl substituents were introduced at the heterobicyclic base C-5 position via Sonogashira coupling of 5-iodo-2′-deoxyribofuranosyl-furo[2,3-d]pyrimidin-2-ones. The resulting compounds had fluorescence emissions of 452–481 nm. High quantum
阐述了访问炔基核苷类似物的新方法。合成了高荧光的5-炔基呋喃嘧啶(97-46%),并在体外研究了它们的抗病毒特性。官能化的区域化学与5-借助于实现内切-挖电乙酰-5- halocyclization p甲苯基-或5- p -pentylphenyl -2'-脱氧尿苷。所得核苷之一,6-对甲苯基-5-碘-2'-脱氧核糖呋喃核糖基-呋喃[2,3- d]的结构通过X射线晶体学证实]嘧啶-2-酮,并将其构象与相关核苷进行比较。通过5-碘-2'-脱氧核糖呋喃核糖基-呋喃[2,3- d]的Sonogashira偶联,将不同的炔基取代基引入C-5杂环基上。] pyrimidin-2-ones。所得化合物的荧光发射为452–481 nm。9-乙炔基-9-芴醇和炔丙醇/甲醚改性的呋喃嘧啶的高量子产率为0.53-0.60。这些修饰的核苷以核糖乙酰酯的形式设计,是用于荧光标记,研究核苷代谢,2'-脱氧核糖核苷激