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Synthesis, characterization and preliminary antibacterial evaluation against Staphylococcus aureus of a new 2,4,5-tri(hetero)arylimidazole derivative based on azaindole heterocycle
* 1 , 2 , 1 , 3, 4, 5
1  Centre of Chemistry, Department of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
2  Center of Chemistry, Department of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
3  Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
4  Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Department of Biology, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
5  Centre of Biological Engineering (CEB), Department of Biology, University of Minho, Campus de Gualtar 4710-057 Braga, Portugal
Academic Editor: Julio A. Seijas

Abstract:

Imidazole derivatives are known for their numerous biological applications, such as antibacterial, antifungal, antioxidant, antiviral, antiparasitic and anticancer, among others. Therefore, several imidazole derivatives have been synthesized and developed in recent years as potential drugs in the treatment of several diseases. In this communication, we report the synthesis of a new imidazole derivative, substituted at positions 2, 4 and 5 with heterocyclic groups, using a simple synthetic methodology and an easy purification procedure. The new compound was characterized by the usual spectroscopic techniques (NMR, UV-Vis absorption and emission). The evaluation of the novel imidazole derivative as a potential antibiotic drug was carried out against the Gram-positive bacterium Staphylococcus aureus, using disk test diffusion method. Results showed a dose-response effect against the bacteria under study, revealing that the rational design of this imidazole derivative is quite promising to improve antibacterial activity of imidazole derivatives.

Keywords: Imidazole; synthesis; antibacterial activity; S. aureus.
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