Synthesis of some new glutamine linked 2,3-disubstituted quinazolinone derivatives as potent antimicrobial and antioxidant agents

Prashanth, M. K. and Revanasiddappa, H. D. (2013) Synthesis of some new glutamine linked 2,3-disubstituted quinazolinone derivatives as potent antimicrobial and antioxidant agents. Medicinal Chemistry Research, 22 (6). pp. 2665-2676. ISSN 1554-8120

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Abstract

A series of novel glutamine linked 2,3-disubstituted quinazolinone conjugates was synthesized from methyl anthranilate and different substituted acids and acid chlorides. The compounds 5a-l were prepared in good yields. All compounds were screened for their antibacterial activity against Gram-positive and Gram-negative bacteria and for antifungal activity against Candida albicans and Aspergillus flavus using paper disk diffusion technique. The minimum inhibitory concentrations of the compounds were also determined by agar streak dilution method. The compound 5b was found to exhibit the most potent in vitro anti-microbial activity. When tested for their antioxidant activity, compounds 5i and 5l showed potent radical scavenging activity, while compound 5g had moderate effect against 2,2-diphenyl-1-picrylhydrazyl, hydroxyl, nitric oxide, and superoxide radical scavenging assays. These results suggest that, the three quinazolinone analogs (5g, 5i, and 5l) could be considered as useful templates for future development to obtain more potent antioxidant agents.

Item Type:	Article
Uncontrolled Keywords:	2 amino 5 (2 benzyl 4 oxoquinazolin 3(4h) yl) 5 oxopentanoic acid, 2 amino 5 2 (2, 2 amino 5 2 (3, 2 amino 5 2 (4 aminophenyl) 4 oxoquinazolin 3(4h) yl 5 oxopentanoic acid, 2 amino 5 2 (4 chlorophenyl) 4 oxoquinazolin 3(4h) yl 5 oxopentanoic acid, 2 amino 5 2 (4 hydroxyphenyl) 4 oxoquinazolin 3(4h) yl 5 oxopentanoic acid, 2 amino 5 2 (4 methoxyphenyl) 4 oxoquinazolin 3(4h) yl 5 oxopentanoic acid, 2 amino 5 2 (4 nitrophenyl) 4 oxoquinazolin 3(4h) yl 5 oxopentanoic acid, 2 amino 5 2 (chlorobenzyloxy) 4 oxoquinazolin 3(4h) yl 5 oxopentanoic acid, 2 amino 5 oxo 4 oxo 2 (2, 2 amino 5 oxo 5 (4 oxo 2 3 tolylquinazolin 3(4h) yl)pentanoic acid, 2 amino 5 oxo 5 (4 oxo 2 phenylquinazolin 3(4h) yl)pentanoic acid, 3, 4 trifluorophenyl) quinazolin 3(4h) ylpentanoic acid, 5 difluorophenyl) 4 oxoquinazolin 3(4h) yl 5 oxopentanoic acid, antibacterial activity, antibiotic agent, antifungal activity, antifungal agent, antioxidant, antioxidant activity, article, ascorbic acid, Aspergillus flavus, Bacillus subtilis, butylated hydroxyanisole, Candida albicans, controlled study, drug synthesis, Escherichia coli, fluconazole, in vitro study, minimum inhibitory concentration, nonhuman, proton nuclear magnetic resonance, Pseudomonas aeruginosa, quinazolinone derivative, Staphylococcus aureus, streptomycin, substitution reaction, unclassified drug
Subjects:	C Chemical Science > Chemistry
Divisions:	Department of > Chemistry
Depositing User:	Arshiya Kousar Library Assistant
Date Deposited:	19 Oct 2019 07:20
Last Modified:	19 Oct 2019 07:20
URI:	http://eprints.uni-mysore.ac.in/id/eprint/9161

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