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A Tetrakisquinoline Analog of Calcium Indicator Quin2 for Fluorescence Detection of Cd 2+
Author(s) -
Mikata Yuji,
Kaneda Minori,
Tanaka Marin,
Iwatsuki Satoshi,
Konno Hideo,
Matsumoto Arimasa
Publication year - 2020
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201901323
Subject(s) - chemistry , fluorescence , quinoline , benzene , methanol , ring (chemistry) , selectivity , calcium , nuclear chemistry , medicinal chemistry , stereochemistry , organic chemistry , physics , quantum mechanics , catalysis
Quin2 (2‐{2‐[bis(carboxymethyl)amino‐5‐methylphenoxy]methyl}‐6‐methoxy‐8‐[bis(carboxymethyl)amino]quinoline) is a well‐known fluorescent Ca 2+ indicator. In this study, we replaced its four carboxy groups with quinolines and deleted a methyl group on the benzene ring to afford TQquin2 [ N , N , N' , N' ‐tetrakis(2‐quinolylmethyl)‐8‐amino‐2‐(2‐aminophenoxy)methyl‐6‐methoxyquinoline]. In methanol solution, TQquin2 exhibited fluorescence enhancement toward Cd 2+ with excellent selectivity.
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