title: Quantum mechanical modeling of N4-(2, 5-disubstituted phenyl) semicarbazones: synthesis and anticonvulsant activity of N4-(2, 5-dimethylphenyl/ -2-fluoro-5-methyl phenyl) semicarbazones.
abstract: Two new series of N4-(2, 5-disubstitutedphenyl) semicarbazones were synthesized and evaluated for the anticonvulsant activity in various animal models of seizures. Quantum mechanical modeling was carried out on these compounds to understand the structural features essential for activity. The higher the difference in HOMO and LUMO energy levels the greater was the activity profile. Substitution with fluoro group on the ortho position of the aryl ring was found to decrease the reactivity and hence the activity profile of aryl semicarbazones, which has been justified with the molecular orbital surface analysis of the synthesized compounds.
authors.affiliation: Medicinal Chemistry Research Laboratory, Pharmacy group, Birla Institute of Technology and Science, Pilani 333031, India.
authors.forename: M
authors.initials: M
authors.lastname: Shalini
authors.forename: P
authors.initials: P
authors.lastname: Yogeeswari
authors.forename: D
authors.initials: D
authors.lastname: Sriram
authors.forename: P
authors.initials: P
authors.lastname: Kudyar
authors.forename: P Roheeth
authors.initials: PR
authors.lastname: Kumar
authors.forename: S
authors.initials: S
authors.lastname: Induja
authors.forename: J P
authors.initials: JP
authors.lastname: Stables
mesh_terms: D000818:Animals; D000927:Anticonvulsants / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology; D004195:Disease Models, Animal; D004583:Electrons; D008958:Models, Molecular; D011789:Quantum Theory; D012640:Seizures / Q000188:drug therapy*; D012664:Semicarbazones / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D013329:Structure-Activity Relationship
chemical_list: D000927:Anticonvulsants; D012664:Semicarbazones