Synthesis and molecular docking study of some novel 2,3-disubstituted quinazolin-4(3H)-one derivatives as potent inhibitors of urease |
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Affiliation: | 1. Department of Chemistry, Quaid–i–Azam University, Islamabad 45320, Pakistan;2. Department of Chemistry, University of Gujrat, Rawalpindi Sub–campus, Satellite Town, Rawalpindi, Pakistan;3. School of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom;4. Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom;5. Natural and Medical Sciences Research Center, University of Nizwa, P.O Box 33, Postal Code 616, Birkat Al Mauz, Nizwa, Oman;6. Department of Chemistry, Abbottabad University of Science and Technology, Havelian, Abbottabad, Pakistan |
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Abstract: | A new series of 2,3-disubstituted quinazolin-4(3H)-one compounds including oxadiazole and furan rings was synthesized. Their inhibitory activities on urease were assessed in vitro. All newly synthesized compounds exhibited potent urease inhibitory activity in the range of IC50 = 1.55 ± 0.07–2.65 ± 0.08 µg/mL, when compared with the standard urease inhibitors such as thiourea (IC50 = 15.08 ± 0.71 µg/mL) and acetohydroxamic acid (IC50 = 21.05 ± 0.96 µg/mL). 2,3-Disubstituted quinazolin-4(3H)-one derivatives containing furan ring (3a-e) were found to be the most active inhibitors when compared with the compounds 2a-e bearing oxadiazole ring. Compound 3a, bearing 4-chloro group on phenyl ring, was found as the most effective inhibitor of urease with the IC50 value of 1.55 ± 0.11 µg/mL. The molecular docking studies of the newly synthesized compounds were performed to identify the probable binding modes in the active site of the Jack bean urease (JBU) enzymes. |
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Keywords: | Urease inhibition Furan Oxadiazole Molecular docking study |
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