title: Synthesis, anti-microbial and molecular docking studies of quinazolin-4(3H)-one derivatives.
abstract: In this work, synthesis, antimicrobial activities and molecular docking studies of some new series of substituted quinazolinone 2a-h and 3a-d were described. Starting form 2-aminobenzamide derivatives 1, a new series of quinazolinone derivatives has been synthesized, in high yields, assisted by microwave and classical methods. Some of these substituted quinazolinones were tested for their antimicrobial activity against Gram-negative bacteria (Pseudomonas aeruginosa and Esherichia coli) and Gram-positive bacteria (Staphylococcus aureus, and Bacillus subtilis), and anti-fungal activity against (Aspergillus fumigatus, Saccharomyces cervevisiae, and Candida albicans) using agar well diffusion method. Among the prepared products, 3-benzyl-2-(4-chlorophenyl)quinazolin-4(3H)-one (3a) was found to exhibits the most potent in vitro anti-microbial activity with MICs of 25.6±0.5, 24.3±0.4, 30.1±0.6, and 25.1±0.5 µg/mL against Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa and Esherichia coli, respectively. Compound 3a was found to exhibits the most potent in vitro anti-fungal activity with MICs of 18.3±0.6, 23.1±0.4, and 26.1±0.5 µg/mL against Aspergillus fumigatus, Saccharomyces cervevisiae, and Candidaal bicans, respectively.
authors: Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. yahia@ksu.edu.sa.
authors: Yahia Nasser
authors: YN
authors: Mabkhot
authors: Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. mun_eera2010@hotmail.com.
authors: Munirah S
authors: MS
authors: Al-Har
authors: Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. ambarakat@ksu.edu.sa.
authors: Assem
authors: A
authors: Barakat
authors: Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. faldossri@kacst.edu.sa.
authors: Fahad D
authors: FD
authors: Aldawsari
authors: Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia. aaldalbahi@ksu.edu.sa.
authors: Ali
authors: A
authors: Aldalbahi
authors: Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi-75210, Pakistan. zaheer.qasmi@iccs.edu.
authors: Zaheer
authors: Z
authors: Ul-Haq
mesh_terms: D019881:Aminoacyltransferases / Q000037:antagonists & inhibitors / Q000737:chemistry; D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D000935:Antifungal Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D001232:Aspergillus fumigatus / Q000187:drug effects; D001412:Bacillus subtilis / Q000187:drug effects; D001426:Bacterial Proteins / Q000037:antagonists & inhibitors / Q000737:chemistry; D002176:Candida albicans / Q000187:drug effects; D020134:Catalytic Domain; D003022:Clotrimazole / Q000494:pharmacology; D003546:Cysteine Endopeptidases / Q000737:chemistry; D052978:Disk Diffusion Antimicrobial Tests; D004926:Escherichia coli / Q000187:drug effects; D062105:Molecular Docking Simulation; D011550:Pseudomonas aeruginosa / Q000187:drug effects; D052999:Quinazolinones / Q000138:chemical synthesis* / Q000494:pharmacology; D013211:Staphylococcus aureus / Q000187:drug effects; D013307:Streptomycin / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D000935:Antifungal Agents; D001426:Bacterial Proteins; D052999:Quinazolinones; D019881:Aminoacyltransferases; C120542:sortase A; D003546:Cysteine Endopeptidases; D003022:Clotrimazole; D013307:Streptomycin