Monika Maheshwari, Anju Goyal



 Objective: The objective of this work was to synthesize and evaluate antimicrobial properties of 1-(4-methyl-6-nitro-2H-benzo[b][1,4]thiazine- 3(4H)-ylidene)hydrazine-1,1-dioxide derivatives.

Methods: These new compounds were synthesized by methylation in 4-N and reacted with hydrazine derivatives and oxidized at the sulfur atom by 30% hydrogen peroxide to obtain sulfones. All the synthesized compounds were evaluated for antimicrobial activity using the disc diffusion method.

Results: The Fourier transform infrared, 1H nuclear magnetic resonance (NMR), 13CNMR, and mass studies confirm the synthesis of some new 1-(4-methyl- 6-nitro-2H-benzo[b][1,4]thiazine-3(4H)-ylidene)hydrazine-1,1-dioxide derivatives. Compound 6f showed the potent antimicrobial activity.

Conclusion: Result obtained in this research work clearly indicated that the compound 6f having methyl at 2 position and nitro groups at 2′ and 4′ position showed the most potent antimicrobial activity.


1,4-Benzothiazines, Sulfones, Hydrazines, Antimicrobial activity.

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1,4-Benzothiazines, Sulfones, Hydrazines, Antimicrobial activity.





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Asian Journal of Pharmaceutical and Clinical Research
Vol 10 Issue 9 September 2017 Page: 348-352

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Authors & Affiliations

Monika Maheshwari
Department of Pharmaceutical Chemistry, B N Institute of Pharmaceutical Sciences, Sevashram, Udaipur, Rajasthan, India.

Anju Goyal
Department of Pharmaceutical Chemistry, B N Institute of Pharmaceutical Sciences, Sevashram, Udaipur, Rajasthan, India.

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