4‐Trifluoromethyl‐Substituted Coumarins with Large Stokes Shifts: Synthesis, Bioconjugates, and Their Use in Super‐Resolution Fluorescence Microscopy
作者:Heiko Schill、Shamil Nizamov、Francesca Bottanelli、Jakob Bierwagen、Vladimir N. Belov、Stefan W. Hell
DOI:10.1002/chem.201302037
日期:2013.12.2
molecular probes, and light‐emitting markers in chemistry, life sciences, and optical microscopy. In this study, new 7‐dialkylamino‐4‐trifluoromethylcoumarins have been designed for use in bioconjugation reactions and optical microscopy. Their synthesis was based on the Stille reaction of 3‐chloro‐4‐trifluoromethylcoumarins and available (hetero)aryl‐ or (hetero)arylethenyltin derivatives. Alternatively
具有大斯托克斯位移的明亮且耐光的荧光染料被广泛用作化学,生命科学和光学显微镜中的传感器,分子探针和发光标记。在这项研究中,新的7-二烷基氨基-4-三氟甲基香豆素被设计用于生物缀合反应和光学显微镜。它们的合成基于3-氯-4-三氟甲基香豆素的Stille反应和可用的(杂)芳基或(杂)芳基乙烯基锡衍生物。或者,将2-三氟乙酰基-5-二烷基氨基酚与可用的(杂)芳基或(杂)芳基乙烯基乙酸酰化,然后进行分子内缩合,得到香豆素与3-(杂)芳基或3- [2-(2-(杂)芳基)乙烯基]香豆素。组。通过引入磺酸残基或通过与香豆素荧光团融合的2,2,4-三甲基-1,2-二氢喹啉片段的C-4上连接的伯羟基磷酸化来提供亲水性。为了用于免疫标记程序,用(活化的)羧基修饰染料。吸收和发射最大值的位置分别在413–480和527–668 nm范围内变化。磷酸化的染料9,CHCH-2-py,H,1-(3-羧丙基)-4-羟甲基-2-,2-二甲基-1