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    • 2. 发明公开
    • FLUORESCENT PROBE
    • FLUORESZENZSONDE
    • EP1553408A4
    • 2005-08-17
    • EP03741232
    • 2003-07-07
    • NAGANO TETSUODAIICHI PURE CHEMICALS CO LTD
    • NAGANO TETSUOURANO YASUTERUKENMOKU SUGURUKANDA KOHJIRO
    • C07D311/82C07D407/04C09B11/06C09B11/24G01N27/447G01N31/22G01N31/00G01N21/78
    • G01N27/44726C07D311/82C09B11/06C09B11/245G01N31/22
    • A fluorescent probe represented by the following formula (I): (I) wherein R1 and R2 each represents hydrogen, a substituent for trapping a proton, metal ion, or active oxygen species, etc.; R3 represents a monovalent substituent; R4 and R5 each represents hydrogen or halogeno; and R6 represents hydrogen, alkylcarbonyl, or alkylcarbonyloxymethyl; provided that R1, R2, and R3 are selected in such a combination that (1) before the trapping of, e.g., a proton, R1, R2, and R3 give a substantially high electron density to the benzene ring to which they are bonded, in order that the compound represented by the formula (I) be substantially nonfluorescent and that (2) after the trapping of, e.g., a proton, R1, R2, and R3 substantially reduce the electron density of the benzene ring to which they are bonded, in order that the compound resulting from the trapping and derived from the compound represented by the formula (I) be substantially highly fluorescent. The fluorescent probe has excellent fluorescent properties.
    • 由下式(I)表示的荧光探针:(I)其中R 1和R 2各自表示氢,用于俘获质子的取代基,金属离子或活性氧等; R3代表一价取代基; R4和R5各自代表氢或卤代; 和R6代表氢,烷基羰基或烷基羰氧基甲基; 条件是R1,R2和R3以如下组合选择:(1)在俘获例如质子之前,R1,R2和R3给与它们键合的苯环提供相当高的电子密度, 为了使式(I)表示的化合物基本上无荧光,并且(2)在捕获例如质子之后,R 1,R 2和R 3实质上降低它们键合的苯环的电子密度 以便由捕获得到的和由式(I)代表的化合物衍生的化合物基本上是高度荧光的。 荧光探针具有优异的荧光特性。