Provided are novel rhodol-based compounds, the preparation method thereof, and use thereof in Tl
+
flux assays. The fluorescent thallium ion sensor compounds have a rhodol fluorophore attached to an amino dicarboxylic acid metal binding moiety. The compounds are prepared in the “pro-dye” form, with the rhodol oxygen and the carboxylic acids of the metal binding unit masked by protecting groups. The disclosed compounds may be used as more red-shifted and less pH-sensitive variants of Thallos.
                            本发明提供了新型罗丹醇基化合物、其制备方法及其在 Tl
+
通量检测中的用途。这种荧光
铊离子传感器化合物具有一个连接到
氨基二
羧酸金属结合分子上的罗多荧光团。这些化合物是以 "原
染料 "形式制备的,罗多氧和
金属结合单元的
羧酸被保护基团遮蔽。所公开的化合物可用作红移更强、pH 值敏感性更低的 Thallos 变体。