Abstract
Fourteen newly synthesized derivatives of indophenazine 1,3,5-trisubstituted pyrazoline bearing benzofuran were prepared from benzofuran chalcones with indophenazine hydrazide through cycloaddition reaction. All the compounds were screened for their in vitro and in vivo antitubercular activity against drug resistant and multidrug-resistant Mycobacterium tuberculosis H37RV. The MIC50 and MIC90 were estimated and compared with rifampicin and gatifloxacin standard drugs. Nitro group containing at ortho 5j, meta 5e, furan ring containing 5m and ortho 5i, para 5h chloro containing compounds were exhibited significant in vitro, in vivo antitubercular activity against standard drugs.
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Acknowledgments
The authors gratefully acknowledge to Department of Microbiology, Kasturba Medical College, Manipal, India for providing laboratory facilities to carryover the in vivo and in vitro antitubercular activity. We acknowledge to IISc, Bangalore, SPIC Foundation, Chennai and Tuberculosis Research Centre (Chennai, India) for provided 1H NMR spectra, mass spectra, elemental analysis, and MDR-TB stain, respectively. Authors heartily acknowledge to Nirma University, Ahmedabad, Gujarat, India for the financial support, laboratory facilities, and other requirements.
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Manna, K., Agrawal, Y.K. Potent in vitro and in vivo antitubercular activity of certain newly synthesized indophenazine 1,3,5-trisubstituted pyrazoline derivatives bearing benzofuran. Med Chem Res 20, 300–306 (2011). https://doi.org/10.1007/s00044-010-9322-5
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DOI: https://doi.org/10.1007/s00044-010-9322-5