Synthesis, complexation and biological effects studies of new thiacrown ethers derived quinoline: part I
- 15 February 2019
- journal article
- research article
- Published by Taylor & Francis in Journal of Sulfur Chemistry
- Vol. 40 (3) , 277-288
Abstract
A series of new thiacrown ethers derived quinoline 7–9 were synthesized in good yield and in a simple way. Their transition metal ions complexation was studied using a conductometric method in acetonitrile at 25°C. Crowns 7 and 8 showed a continuous decrease in the molar conductances in their complexation with Ag+, Cu2+, Hg2+ and Zn2+ which begins to level off at a molar ratio of 1:1 crown to metal, indicating the formation of 1 stable 1:1 complex. On the other hand, crown 9 showed the formation of 1:1 complexes only with Ag+, Cu2+, Hg2+. The in vitro, a preliminary antimicrobial, antioxidant and cytotoxic effects on breast tumor cells were also reported. Five bacterial test strains were included in the present study. Antioxidant activity was measured in terms of the radical scavenging ability and decolorization of 1,1-Diphenyl-2-picrylhydrazyl (DPPH) radicals. Cytotoxic effect of thiacrown was evaluated using MDA MB-231 cell line (human breast adenocarcinoma, ATCC HTB-26). GRAPHICAL ABSTRACTKeywords
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