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  • Title: Structural modifications of the primary amino group of anticonvulsant aryl semicarbazones.
    Author: Dimmock JR, Puthucode RN, Lo MS, Quail JW, Yang J, Stables JP.
    Journal: Pharmazie; 1996 Feb; 51(2):83-8. PubMed ID: 8720804.
    Abstract:
    A number of aryl semicarbazones had been shown previously to possess significant anticonvulsant properties. The principal objective of the present investigation was to determine the importance of the primary amino group in this series of compounds by replacing it with other substituents. The results indicate that the amino group was not essential for anticonvulsant activity. However its replacement by an aryl ring generally abolished activity while a terminal phenylamino function was better tolerated. Thus both the size of the group and its hydrogen bonding capabilities appear to influence bioactivity. Alteration of the oxygen atom of the semicarbazones by isosteres did not enhance anticonvulsant properties.
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