This investigation was to synthesize novel valproic acid analogues which were expected to possess anticonvulsant activity. Two types of valproic acid analogues; potential and monoureide analogues of valproic acid were synthesized. Three potential prodrugs of valproic acid were prepared. (N,N-dimethylaminoethyl)-2-propylpentanoate was synthesized by acylating the aminoalcohol with valproyl chloride. (N,N-diethylaminomenthy1) -2-propylpentamide was synthesized by the condensation reaction of 2-proylpentamide, formaldehyde and diethylamine. N(2’-propy1- pentanoyl)-2-pyrrolidinone was synthesized by reacting pyrrolidinone sodium with valproyl chloride. Two monoureide analoges of valproic acid were prepared. N(2-propylpentanoyl) urea was synthesized by acylating urea with valproyl chloride. N(2-propylpentanoyl) thiourea was synthesized via the acylisothiocyanate intermediate and concentrated ammonia. The structure of the synthesized compounds were confirmed by IR, 1H-NMR, 13C-NMR, M.S. techniques and elemental analysis.