New 3-(Heteroaryl)-2-iminocoumarin-based Borate Complexes: Synthesis, Photophysical Properties, and Rational Functionalization for Biosensing/Biolabeling Applications
作者:Benoît Roubinet、Cédrik Massif、Mathieu Moreau、Frédéric Boschetti、Gilles Ulrich、Raymond Ziessel、Pierre-Yves Renard、Anthony Romieu
DOI:10.1002/chem.201502126
日期:2015.10.5
3‐(heteroaryl)‐2‐iminocoumarin ligands bearing both a phenolic hydroxyl group (acting as a fluorogenic center) and an N‐aryl substituent (acting as a stabilizing moiety) have been synthesized in good yields by applying a straightforward two‐step method. These novel fluorogenic dyes belong to the family of “Boricos” (D. Frath et al., Chem. Commun. 2013, 49, 4908–4910) and are the first examples of phenol‐based fluorophores
一系列具有酚羟基(用作荧光中心)和N-芳基取代基(用作稳定基团)的3-(杂芳基)-2-亚氨基香豆素配体的一系列二氟化硼配合物的成员通过应用简单的两步法即可获得收益。这些新颖的荧光染料属于“ Boricos”家族(D. Frath等人,Chem。Commun。2013,49,4908-4910),并且其中在绿-黄色光谱范围内的光物理性质正在显着改善由基于苯酚的荧光团的例子第一Ñ,Ñ硼原子的螯合。通过相应的2,4-二硝基苯基(DNP)醚的制备证明了通过可逆的苯酚部分化学修饰来调节其荧光性质,这在与硫醇反应时导致了剧烈的“ OFF-ON”荧光反应。另外,为了扩大这些“ 7-羟基-硼酸”衍生物的范围,特别是在生物标记中,适合于(生物)结合的胺或羧酸官能团已被引入其支架中。它们的用途已在制备荧光牛血清白蛋白(BSA)偶联物和“ Borico” -DOTA样支架中得到证明,以设计新颖的单分子多峰荧光放射性同位素显像剂。