| abstract |
The subject of the invention is heterocyclic compounds endowed with anticonvulsant activity of general formula (I) in which Y is chosen from -O-, -S- and R₄ being H or optionally substituted alkyl, acyl or benzyl; Z is chosen from the groups -CO-N (R₆) -, -NH-CO-CH = CH- and-N (R₆) -CO-, R₆ being H or alkyl; R₁ is C₁-C₄ alkyl; R₂ is C₁-C₄ alkyl or halogen; R₃ represents an optionally substituted C,-C₄ alkyl, alkoxy or hydroxyalkyl group, or C₂-C₇ alkanoyl.n n n Medicines. |