3-Chloro-2-methylphenyl-substituted semicarbazones: Synthesis and anticonvulsant activity

Perumal Yogeeswari, Rathinasabapathy Thirumurugan, Ramkumar Kavya, Jayakar Selwyn Samuel, James Stables, Dharmarajan Sriram

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

Abstract

A series of 3-chloro-2-methylphenyl substituted semicarbazones (3-33) was synthesized and evaluated for anticonvulsant and CNS activities. After intraperitoneal injection to mice or rats, the semicarbazone derivatives were examined in the maximal electroshock seizure (MES), subcutaneous pentylenetetrazole (scPTZ), and subcutaneous strychnine (scSTY)-induced seizure and neurotoxicity screens. The aryl urea (1) and the semicarbazide (2) showed anticonvulsant activity in the MES and scPTZ screens with acute neurotoxicity, whereas the semicarbazone derivatives showed good anticonvulsant potency in the scSTY screen with moderate activity against MES and scPTZ screens. Compound 21 exhibited anticonvulsant potency against all the three screens with lesser neurotoxicity. Some titled compounds exhibited lesser CNS depression and neurotoxicity compared to phenytoin or carbamazepine as was evident from the CNS studies.

Original languageEnglish (US)
Pages (from-to)729-734
Number of pages6
JournalEuropean Journal of Medicinal Chemistry
Volume39
Issue number8
DOIs
StatePublished - Aug 2004
Externally publishedYes

Keywords

  • 3-Chloro-2-methyl substituted phenyl semicarbazones
  • Anticonvulsants
  • Aryl semicarbazones
  • CNS depressants

ASJC Scopus subject areas

  • Pharmacology
  • Drug Discovery
  • Organic Chemistry

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