Interaction of Pd2+ complexes of 2,6-disubstituted pyridines with nucleoside 5′-monophosphates
作者:Oleg Golubev、Tuomas Lönnberg、Harri Lönnberg
DOI:10.1016/j.jinorgbio.2014.05.013
日期:2014.10
metal-ion-mediated recognition of nucleic acid bases, PdCl+ complexes of six 2,6-disubstituted pyridines, viz. pyridine-2,6-dicarboxamide, its N2,N6-dimethyl and N2,N6-diisopropyl derivatives, 6-carbamoylpyridine-2-carboxylic acid, 6-aminomethylpyridine-2-carboxamide and its N2-methyl derivative, were prepared and their interaction with nucleoside 5′-monophosphate (NMP) was studied by 1H NMR spectroscopy in D2O
为了更多地了解金属离子介导的核酸碱基识别的基本原理,即六个6,2,6-二取代的吡啶的PdCl +配合物。吡啶-2,6-二甲酰胺,其N 2,N 6-二甲基和N 2,N 6-二异丙基衍生物,6-氨基甲酰基吡啶-2-羧酸,6-氨基甲基吡啶-2-甲酰胺及其N 2-甲基衍生物,制备了它们,并通过1 H NMR光谱在pH 7.2的D 2 O中研究了它们与核苷5'-单磷酸酯(NMP)的相互作用。核碱基内的结合位点基于Pd 2 +进行分配引起碱基部分质子共振化学位移的变化。通过比较络合和未络合的NMP的芳族和异头质子的强度,可以确定在不同浓度下参与单核或双核Pd 2 +络合物的NMP的摩尔分数。一些吡啶配合物在NMP之间显示出中等的区分度。