Naphthyridine amide–urea conjugate: a case toward selective fluorometric sensing of N-acetyl proline carboxylate
作者:Kumaresh Ghosh、Tanmay Sarkar
DOI:10.1007/s10847-011-9929-2
日期:2011.10
A simple neutral naphthyridine-based chemosensor 1, which selectively recognizes the tetrabutylammonium salt of N-acetyl-l-proline over the other N-acetyl-l-amino acid salts studied in CHCl3 containing 0.1% DMSO, has been designed and synthesized. Moreover, the complexation-induced change in emission characteristics of 1 distinguishes the amino acid salts examined from their conjugate acids. Interaction studies were performed by UV–vis, fluorescence and NMR spectroscopic methods. A simple neutral naphthyridine –based chemosensor 1, which selectively recognizes the tetrabutylammonium salt of N-acetyl-l-proline in CHCl3 containing 0.1% DMSO, has been designed and synthesized. The complexation-induced change in emission characteristics of 1 distinguishes the amino acid salts from their conjugate acids.
我们设计并合成了一种简单的基于中性萘啶的化学传感器 1,它能在含有 0.1% DMSO 的 CHCl3 中选择性地识别 N-乙酰基-l-脯氨酸的四丁基铵盐,而不是所研究的其他 N-乙酰基-l-氨基酸盐。此外,络合引起的 1 发射特性的变化将所研究的氨基酸盐与它们的共轭酸区分开来。通过紫外-可见光、荧光和核磁共振光谱方法进行了相互作用研究。设计并合成了一种简单的基于中性萘啶的化学传感器 1,它能在含有 0.1% DMSO 的 CHCl3 中选择性地识别 N-乙酰-l-脯氨酸的四丁基铵盐。1 的络合诱导发射特性变化可将氨基酸盐与其共轭酸区分开来。