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-PHENYL SUCCINIMIDES
1 Parke, Davis and Company, Detroit, Michigan
An appraisal of the anticonvulsant activity has been made of derivatives of
-phenyl succinimide. The
,
-methyl and ethyl substituted compounds were more effective against Metrazol than against electrically-induced convulsions. Methylation of the heterocyclic nitrogen of most of these succinimides resulted in an increase in anti-Metrazol potency. This enhancing effect becomes less with the increasing length and branching of the alkyl chain.
The
,
-diphenyl and the
,
-diphenyl succinimides on the other hand, were more effective in suppressing electrically-induced than Metrazol-induced convulsions. Methylation of the heterocyclic nitrogen of these compounds diminished their anti-electroshock activity.