Synthesis, Spectral Studies and Antimicrobial Activity of imidazo[2,1-b][1,3,4]thiadiazole derivatives

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Monika Gupta
Baljeet Kaur
Shailender Pratap Singh
Vivek Kumar Gupta

Abstract

Thiadiazole is a heterocyclic compound containg both two nitrogen atom and one sulfur atom as a part of the aromatic five-membered ring. The imidazo [2,1-b]-1,3,4-thiadiazole ring system is the core skeleton of well known immunomodulator levamisole. The synthesis and antimicrobial activity of nine 6-Phenyl-2- substituted imidazo [2,1-b]-1,3,4-thiadiazole derivatives were reported against Gram +ve bacteria Bacillius subtilis (MTCC 121), Staphyloccus aureus (MTCC 87), Gram –ve bacteria Pseudomonas aeruginosa (MTCC 424), Escherichia coli (MTCC 40), and fungal strains Candida albicans (MTCC 183), Fusarium solani (MTCC 2935), Fusarium oxyporium (MTCC 2840). Ciprofloxacin and Fluconazole were used as standard drug for antibacterial and antifungal activity respectively. The synthesized compound (6) and (5b) had moderate antibacterial activity especially with Gram negative Escherichia coli (MTCC 40) where (5a) and (5f) had good antibacterial activity. The structures of the synthesized compounds were established by IR, NMR and Mass spectral studies.

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Gupta M, Kaur B, Singh S, Gupta V. Synthesis, Spectral Studies and Antimicrobial Activity of imidazo[2,1-b][1,3,4]thiadiazole derivatives. IJPBR [Internet]. 31Dec.2017 [cited 5Aug.2020];5(04):34-8. Available from: http://ijpbr.in/index.php/IJPBR/article/view/684
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