申请人:——
公开号:US07524974B2
公开(公告)日:2009-04-28
A fluorescent probe which is represented by the following formula (I):
(wherein, R1 and R2 represent hydrogen atom, or a substituent for trapping proton, a metal ion, or an active oxygen species, or the like; R3 represents a monovalent substituent; R4 and R5 represent hydrogen atom or a halogen atom; R6 represents hydrogen atom, an alkylcarbonyl group, or an alkylcarbonyloxymethyl group, provided that a combination of R1, R2, and R3 provides (1) substantially high electron density of the benzene ring to which said groups bind, so that the compound represented by the formula (I) is substantially no fluorescent before the trapping of proton, or the like, and (2) substantially reduced electron density of the benzene ring to which said groups bind, so that a compound after the trapping, which is derived from the compound represented by the formula (I) is substantially highly fluorescent after the trapping of proton or the like). A fluorescent probe having an excellent fluorescence property is provided.
一种荧光探针,其由以下公式(I)表示:
(其中,R1和R2代表氢原子,或用于捕获质子、金属离子或活性氧物种等的取代基;R3代表一价取代基;R4和R5代表氢原子或卤素原子;R6代表氢原子、烷基羰基基团或烷基羰氧甲基基团,前提是R1、R2和R3的组合提供(1)苯环的电子密度显著高,使得由公式(I)表示的化合物在捕获质子等之前基本不发光,以及(2)苯环的电子密度显著降低,使得捕获后的化合物,即由公式(I)表示的化合物衍生物,在捕获质子等后基本上具有高荧光性)。提供了具有优异荧光性能的荧光探针。