Organoboron Schiff bases as cell-staining fluorescent probes: Synthesis, Chemio-photophysical characterization, DFT, and X-ray structures
作者:Marisol Ibarra-Rodríguez、Blanca M. Muñoz-Flores、Alberto Gómez-Treviño、Rodrigo Chan-Navarro、Jessica C. Berrones-Reyes、Arturo Chávez-Reyes、H.V. Rasika Dias、Mario Sánchez Vázquez、Víctor M. Jiménez-Pérez
DOI:10.1002/aoc.4718
日期:2019.4
require new fluorescent dyes with excellent chemical, physical, and photophysical properties. A series of four new Boron Schiff bases (1–4) has been prepared by condensation between phenylboronic acid with the corresponding ligand. The compounds were characterized by NMR (1H, 13C, and 11B), UV/vis, fluorescence spectroscopy, and high‐resolution mass spectrometry. The crystal structures of three compounds
荧光成像技术正在成为细胞生物学和现代医学中最强大且无创的诊断工具,这些领域中异常的细胞排列与疾病有关。因此,这些技术需要具有优异的化学,物理和光物理性质的新型荧光染料。一系列的四个新的硼席夫碱(1 - 4)已经准备由苯基硼酸用相应的配位体之间的缩合。化合物通过NMR(1 H,13 C和11 B),U V / v表征是荧光光谱法和高分辨率质谱法。三种化合物的晶体结构均显示四配位硼原子与半平面骨架配体。有趣的有机硼对荧光粘度的响应(Φ:大于3倍)。此外,发现化合物1和2可以用作细胞成像的荧光染料(B16F10,CaCo和A-431细胞),因为它具有在细胞内快速积累并发出鲜绿色荧光的能力,显示出低细胞毒性活性以及溶液中的高光稳定性。此外,还使用DFT对化合物进行了研究。