Synthesis, Anticonvulsant, Antimicrobial and Analgesic activity of Novel 1,2,4-Dithiazoles.

A series of 1,2,4-dithiazole were synthesized from 1,2,4-thiadiazoles in the presence of CS(2) and evaluated for their antimicrobial, anticonvulsant, analgesic and neurotoxicity potential. The compounds provided significant protection against maximal electroshock-induced seizures and seizures induced by 300 mg/kg of subcutaneous pentylenetetrazole administration. The designed compounds (3a-g) were screened in vitro for antibacterial activity against Staphylococcus aureus Escherichia coli, Bacillus subtilis and Pseudomonas aeruginosa and antifungal activity in fungal strains of Candida albicans and Aspergillus niger. Synthesized compounds exhibited moderate antibacterial and antifungal activity. N,N -Di-naphthalen-1-yl-N -(thioxo-5H -[1,2,4]dithiazol-3-yl)-guanidine and N,N -Bis-(4-fluoro-phenyl)-N -(5-thioxo-5H -[1,2,4]dithiazol-3-yl)-guanidine showed analgesic activity by tail flick method.