作者: Benoît Roubinet , Pierre-Yves Renard , Anthony Romieu
DOI: 10.1016/J.DYEPIG.2014.02.004
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摘要: Abstract The synthesis and photophysical properties of novel water-soluble phenol-based fluorophores derived from 3-benzothiazolyl-7-hydroxycoumarin emitting in the range 485–631 nm are described. Further conversion into thiol-sensitive fluorogenic probes through chemical modification their hydroxyl group was next investigated. Depending on type thiol-reactive quenching moiety used (2,4-dinitrobenzenesulfonyl ester, 2,4-dinitrophenyl ether or benzoquinone-type Michael acceptors) water-solubilizing group(s) pre-introduced coumarin core, dramatic differences thiol-induced fluorescence activation these pro-fluorophores under physiological conditions were observed. Results for this comparative study provide valuable informations selection most suitable structural features designing 7-hydroxycoumarin-based long-wavelength fluorescent thiol bioimaging.