Fluorescence properties of some 2-(4-amino-substituted-3-nitrophenyl)-3-hydroxyquinolin-4(1H)-ones
作者:Kamil Motyka、Jan Hlaváč、Miroslav Soural、Pavel Hradil、Petr Krejčí、Lubomír Kvapil、Miloš Weiss
DOI:10.1016/j.tetlet.2010.12.013
日期:2011.2
2-(4-Amino-substituted-3-nitrophenyl)-3-hydroxyquinolin-4(1H)-ones have been studied to evaluate their fluorescence properties and possible use as molecular fluorescent probes. The amino group was substituted with various alkyl moieties possessing a suitable terminal functional group (such as hydroxy or amino group) that could serve to bind a 3-hydroxyquinolin-4(1H)-one (3HQ) fluorescence label to a biomolecule. Besides simple hydrocarbon chains, ligands containing ethylenoxy units as optimal spacers were also tested. The structure-fluorescence properties and theoretical applicability of the studied molecules are discussed. (C) 2010 Elsevier Ltd. All rights reserved.