A series of new of 2-furano-4 (3H)-quinazolinone derivatives 5 (at) were synthesized. The compounds were characterized by their IR, 1H NMR, 13C NMR, and Mass spectral data. The antimicrobial activity of newly anthranilic acid-based compounds against various bacteria; S. aureus, Salmonella enterica, Vibrio cholerae, Bacillus subtilis, Proteus mirabili, Escherichia coli V517, Mycobacterium smegmatics, Pseudomonas aeruginosa and fungi; ...