期刊
JOURNAL OF HETEROCYCLIC CHEMISTRY
卷 58, 期 2, 页码 589-602出版社
WILEY
DOI: 10.1002/jhet.4198
关键词
-
资金
- Deanship of Scientific Research at Umm Al-Qura University [20UQU0040DSR]
This research focused on synthesis of novel fluorinated hydrazonoyl halides and their use in generating thiazole derivatives and imidazopyrazole systems. Antimicrobial testing showed varied activity levels among the synthesized compounds, with one derivative showing promising activity against Candida albicans. Docking simulation indicated good binding affinity of several compounds in the ATP binding site of DNA gyrase B enzyme.
Hydrazonoyl halides have been known for their ability to react with different reagents to afford wide range of bioactive heterocyclic systems as thiazoles and imidazopyrazoles. This research work focused on the synthesis of two new fluorinated hydrazonoyl chlorides and used them in synthesis of novel series of thiazole derivatives and two imidazopyrazole systems. The mechanistic pathways and the structures of all synthesized derivatives were discussed and assured based on the available spectral data. The results of antimicrobial activity of the tested thiazoles and imidazopyrazoles showed that some derivatives have moderate to no activity against tested fungi and bacteria strains. Only one derivative namely 2-(2-(3-fluoro-4-methylphenyl)hydrazono)-7-(2-oxoindolin-3-ylidene)-2,7-dihydro-3H-imidazo[1,2-b]pyrazole-3,6(5H)-dione is the most active against Candida albicans (CA) with IZD = 20 mm, which was equipotent to ketoconazole. Furthermore, docking simulation was carried out to predict the binding pattern of the new compounds in the ATP binding site of the DNA gyrase B enzyme. The results of the docking simulation revealed that compounds 9a-e, 12, and 13a,b fit well in the ATP binding site of DNA gyrase B with docking score values ranging from -5.883 to -6.833 kcal/mol.
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