SYNTHESIS OF NOVEL QUINAZOLIN-4(3H)-ONYL AZETIDINONES AS POTENTIAL ANTICONVULSANT AGENTS

A series of 4-(substituted aryl)- 1- [2'- methyl-6'- substituted anilino quinazolinon-4'-(3'H)-onyl ] -3- chloroazetidin- 2-ones 14-25 have been synthesized by addition of substituted anilines to 4-(substituted aryl)- 1- [2'- methyl-6'- bromoquinazolinon-4'-(3'H)-onyl ] -3- chloro- azetidin-2-ones 8-13 which in turn were prepared by the cycloaddition of triethylamine in dioxane to 3-(N-substituted benzylidene amino phenyl amido )-2-methyl-6-bromoquinazolin-4(3H)-ones 2-7 in presence of acetyl chloride. These compounds were screened for anticonvulsant activity and acute toxicity. Compound 4-(substituted aryl)- 1- [2'- methyl-6'- substituted anilino quinazolinon-4'-(3'H) – onyl ] -3- chloro-azetidinone showed most potent activity. The structure of all the synthesized compounds were delineated by elemental (C, H, N ) and spectra (IR, proton magnetic resonance and mass ) analysis.