Three sulfonyl benzothiazole-based fluorescent probes (RSHP1, RSHP2, and RSHP3) for the detection of biothiols (cysteine, homocysteine, and glutathione) are developed based on thiol-mediated nucleophilic aromatic substitutions. The probes exhibited good selectivity and sensitivity toward biothiols over other analytes. The probes were successfully applied for visualizing endogenous thiols in living cells.
基于
硫醇介导的亲核芳香取代反应,我们开发了三种
苯并噻唑磺酰基荧光探针(RSHP1、RSHP2和RSHP3),用于检测
生物硫醇(半胱
氨酸、高半胱
氨酸和
谷胱甘肽)。这些探针对
生物硫醇表现出良好的选择性和灵敏度,优于其他分析物。它们成功应用于活细胞内源
硫醇的可视化。