S. Abbas, H. D. Hanoon, Z. Abbas
Feb 1, 2020
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Influential Citations
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Journal
Russian Journal of Organic Chemistry
Abstract
Abstract 1,3-Oxazepine and 1,3-oxazepane derivatives of 6-nitrobenzothiazol-2-amine were synthesized, and their spectral and antibacterial properties were studied. The condensation of 6-nitrobenzothiazol-2-amine with aromatic aldehydes gave the corresponding Schiff bases, whose subsequent intermolecular cyclization with maleic and succinic anhydrides led to the target 1,3-oxazepine and 1,3-oxazepane derivatives. The compositions and structures of the synthesized compounds were established by elemental analysis and FTIR and 1 H NMR spectroscopy. 2-(4-Hydroxy-3-methoxyphenyl)-3-(6-nitrobenzothiazol-2-yl)-1,3-oxazepane-4,7-dione and 2-(4-iso-propylphenyl)-3-(6-nitrobenzothiazol-2-yl)-1,3-oxazepane-4,7-dione showed the highest antibacterial activity against the gram-positive bacteria Klebsiella pneumonia and Bacillus subtilis , and the gram-negative bacteria Staphylococcus aureus provide to be highly sensitive to 2-(4-hydroxy-3-methoxyphenyl)-3-(6-nitrobenzothiazol-2-yl)-1,3-oxazepane-4,7-dione.