| 摘要 |
<p>Compounds of the formula <IMAGE> wherein R1 is phenyl, halo- and/or methyl-substituted phenyl or pyridinyl; R2 is hydrogen, straight or branched alkyl of 1 to 4 carbon atoms, 2- or 3-hydroxy-(alkyl of 2 to 3 carbon atoms) or 2- or 3-dimethylamino-(alkyl of 2 to 3 carbon atoms); R3 is hydrogen or alkyl of 1 to 3 carbon atoms; and R4 is hydrogen, chlorine or methyl. The compounds are useful as anticonvulsants.</p> |
