Determination of the anomeric configuration of 2′-deoxy-D-ribonucleosides by<sup>1</sup>H NMR and by crystallographic studies of a novel 2′-deoxy<i>C</i>-nucleoside
作者:Prem C. Srivastava、Roland K. Robbins、F. Takusagawa、H. M. Berman
DOI:10.1002/jhet.5570180838
日期:1981.12
2′-Deoxy-D-ribonucleoside analogs of biologically active 2-β-D-ribofuranosylthiazole-4-carboxamide were synthesized and the structure of the β anomer was determined by X-ray crystallography and ′1H nmr. 2′-Methylene protons of α- and β-deoxyribonucleosides were observed to exhibit characteristic patterns in the 1H nmr which was used to distinguish between the two anomers. The method could be used to
合成了具有生物活性的2-β-D-呋喃核糖基噻唑-4-羧酰胺的2'-脱氧-D-核糖核苷类似物,并通过X射线晶体学和' 1 H nmr确定了β端基异构体的结构。观察到α-和β-脱氧核糖核苷的2'-亚甲基质子在1 H nmr中表现出特征性模式,该模式用于区分两个端基异构体。该方法可用于确定N-和C -2'-脱氧核糖核苷的异头构型。