PMID: 9527647Apr 4, 1998Paper

Anticonvulsant profile of 4-amino-(2-methyl-4-aminophenyl)benzamide in mice and rats

Pharmacology & Toxicology
M D KanyonyoD M Lambert

Abstract

An original ameltolide analogue 4-amino-(2-methyl-4-aminophenyl)benzamide, in which a second amino group has been introduced, was synthesized and evaluated for anticonvulsant activity. After intraperitoneal administration to mice, 4-amino-(2-methyl-4-aminophenyl)benzamide was found active in the maximal electroshock seizure test and against the tonic seizures elicited either by bicuculline or 3-mercaptopropionic acid. 4-amino-(2-methyl-4-aminophenyl)benzamide (4A-2M4A-PB) gave anti maximal electroshock seizures ED50 of 63 micromol/kg (15.4 mg/kg) and a TD50 of 676 micromol/kg (163 mg/kg), yielding a PI of 10.7; the potency is similar to that of the 4-amino-(2-methyl-3-aminophenyl)phthalimide (4A-2M3A-PP), superior to that of 4-amino-(2,6-dimethylphenyl)phthalimide (4A-2,6-DMPP), close to that of phenytoin and carbamazepine and inferior to that of ameltolide. 4A-2M4A-PB with an ED50 of 41[28-60] micromol/kg (9.9 mg/kg) is as active after oral administration to rats as carbamazepine, more active than ameltolide, 4-A-2M3A-PP and phenytoin and slightly less active than the 4A-2,6-DMPP. The introduction of a second amino group on the substituted phenyl ring does not affect drastically the anticonvulsant potency after intraperitoneal...Continue Reading

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