Abstract
Synthesis of 2-[2-(2,6-dichlorophenyl)amino]phenylmethyl-3-[4-(2-substitutedphenyl-4-oxo-thiazolidinyl)aryl]-6-bromo quinazolin-4(3H)ones VIa-j have been achieved from the starting material 2-[(2,6-dichlorophenyl)amino] phenylacetic acid I to benzoxazine III, Further reaction with p-phenylindiamine and substituted aromatic aldehyde gave 2-[2-(2,6-dichlorophenyl)amino]phenyl methyl-3-(4-aminoaryl)-6-bromo quinazolin-4(3H)-ones IV and 2-[2-(2,6-dichlorophenyl)amino]phenylmethyl-3-[4-(2-substituted arylidene)aryl]-6-bromo quinazolin-4(3H)ones Va-j respectively. Va-j on cyclization with thioglycolic acid gave VIa-j. All the synthesized compounds have been characterized on the basis of elemental analysis, IR and 1H-NMR spectral data. They were screened for antibacterial and antifungal activity at two concentrations and compared with the standard drugs penicillin-G, ampicillin, and amoxicillin. The compounds containing 4-OCH3 and 3, 4, 5-(OCH3)3 showed good activity, compared with the standard drugs.
Keywords
Antifungal
Antibacterial
P-Phenylenediamine
Thiazolidinone
Quinazolinone
Copyright
© 2022, Author(s). This open-access article is available under the Creative Commons Attribution 4.0 (CC BY 4.0) International License (https://creativecommons.org/licenses/by/4.0/), which allows for unrestricted use, distribution, and reproduction in any medium, provided that the original work is properly cited.