申请人:OREGON STATE
公开号:WO2013126816A1
公开(公告)日:2013-08-29
Probes for selectively detecting compounds comprising a thiol group and an amino group ("thiols") are disclosed. Exemplary thiols include cysteine, homocysteine, and glutathione. Embodiments of the disclosed probes produce a detectable change in absorbance spectrum and/or emission spectrum when reacted with one or more thiols in solution. Methods and kits for performing the detection also are disclosed. The probes have a general formula where each bond depicted as "¯¯¯¯¯¯ " is a single or double bond; R1, R3-R6 and R8 independently are hydrogen, hydroxyl, thiol, lower alkyl, carboxyalkyl, amino, alkoxy, or halogen; R2 is an α,β-unsaturated aliphatic ester; R7 is oxygen, sulfur, hydrogen, hydroxyl, thiol, lower alkyl, carboxyalkyl, amino, alkoxy, or halogen, or R7 and R8 together form a cycloalkyl or aryl ring; X1 is CH2, S, NH, O, Se, Si(CH3)2, Ge(CH3)2, Sn(CH3)2, or C(CH3)2; and X2 is CH, CH2, N, NH, or CR9 where R9 is aryl.
本文揭示了用于选择性检测含有巯基和氨基(“巯基”)的化合物的探针。示例巯基包括半胱氨酸,同型半胱氨酸和谷胱甘肽。所述探针的实施例在与一个或多个溶液中的巯基反应时,产生可检测的吸收光谱和/或发射光谱的变化。本文还揭示了执行检测的方法和工具包。探针具有一般公式,其中每个表示为“¯¯¯¯¯¯”的键是单键或双键;R1、R3-R6和R8独立地是氢、羟基、巯基、低碳基、羧基烷基、氨基、烷氧基或卤素;R2是α,β-不饱和脂肪酸酯;R7是氧、硫、氢、羟基、巯基、低碳基、羧基烷基、氨基、烷氧基或卤素,或R7和R8一起形成环烷基或芳基环;X1是CH2、S、NH、O、Se、Si(CH3)2、Ge(CH3)2、Sn(CH3)2或C(CH3)2;X2是CH、CH2、N、NH或CR9,其中R9是芳基。