In the experimental work we synthesized ethylurea derivatives of benzothiazole-2-amine, which differed in substituents attached at position 6. The purpose of different substituents was improving solubility of designed compounds and forming interactions with amino-acid residues Arg76 and Arg136, because they are crucial to achieve good inhibition. The structure and the purity of synthesized compounds were tested with chromatographic and spectroscopic techniques and evaluated for potential inhibitory activity on isolated enzyme DNA gyrase from bacterial species Escherichia coli (E. coli).
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