Highly Selective Recognition of Adenine Nucleobases by Synthetic Hosts with a Linked Five-Six-Five-Membered Triheteroaromatic Structure and the Application to Potentiometric Sensing of the Adenine Nucleotide
作者:Yosuke Hisamatsu、Keiko Hasada、Fumi Amano、Yasuhiro Tsubota、Yuko Wasada-Tsutsui、Naohiro Shirai、Shin-ichi Ikeda、Kazunori Odashima
DOI:10.1002/chem.200600099
日期:2006.10.5
spectroscopy. This type of host displayed high selectivity in complexation, with an accompanying fluorescent response to lipophilized adenosine in CHCl(3). Furthermore, a remarkably selective potentiometric response was attained for adenosine 5'-monophosphate over 5'-GMP, 5'-CMP, and 5'-UMP by using an ion-selective electrode with a PVC-supported solvent polymeric membrane. This indicates recognition of water-soluble
开发了一种腺嘌呤选择性宿主分子的新结构,该结构具有五六十五元杂芳族环和两个氨基甲酰基NH位的相关链接。这种结构为腺嘌呤核苷碱基提供了正确定向的互补氢键位点阵列,利用了Watson-Crick和Hoogsteen型相互作用。通过多个氢键与腺嘌呤核碱基的络合得到(1)1 H NMR光谱的支持。这种类型的宿主在络合中显示出高选择性,并伴随着对CHCl(3)中脂化腺苷的荧光反应。此外,通过使用带有PVC支撑的溶剂聚合物膜的离子选择电极,对5'-GMP,5'-CMP和5'-UMP的5'-单磷酸腺苷获得了显着的选择性电位响应。这表明通过膜-水界面识别了水溶性核苷酸客体。这些发现有望为生物系统中单核苷酸的人工传感系统的开发提供可靠的基础。