Synthesis and Antibacterial Evaluation of New developed 2,3-Dihydroquinazolin-4(1H)-ones

Antibacterial agents structurally based on quinazolin-4-one pharmacophore, have been designed and synthesized. Where the targeted compounds 5a, c and 6a-c were in vitro screened against three gram positive and three gram negative bacteria strains compared to ciprofloxacin as reference drug. Most of compounds had moderate antibacterial activity while compound 5c showed the most significant activity and could be considered as a new lead compound for antibacterial drug design.