Abstract
new series of 3-[3-amino-2-methyl-6-substituted quinazolin-4(3H)-onyl chalconyl)-2-substituted indoles (3-8), 3-[3-Amino-2-methyl-6- substituted quinazolin-4(3H) -onyl-benzoxazepin/benzo -thiazepin- 2-yl] -2-substituted indoles (9-20) and 3-[3-amino-2-methyl-6-substituted quinazolin-4(3H) -onyl-3- (sub-stituted phenylaminomethylene) -benzoxazepin/benzothizepin-2-yl] -2-substitutedindoles (21-44) were synthesised and evaluated for anticonvulsant activity. All these compounds were screened in vivo, for their anticonvulsant activity and acute toxicity. Coumpund 44 , 3-[3-amino-2-methyl-6-bromoquinazolin- 4(3H)-onyl-3- (chlorophenylaminomethylene)-benzothiazepine-2-yl]-2-chloroindole, was found to be most potent compound of this series , more potent than standard drug phenytoin sodium. The homogeneity of all the compounds have been established by elemental analysis, IR and 1H-NMR spectroscopy.
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