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Tuberculosis (TB) remains a significant global health concern, necessitating the exploration of novel therapeutic agents. Reported antitubercular activities of previously synthesized benzopyran and other oxygen-containing heterocycles motivate us to synthesize and evaluate the antitubercular potential of benzopyran derivatives.
The aim of this study was to combine two scaffolds; one is coumarin (benzopyran-2-one), and another one is piperazine, as both are found in anti-tubercular derivatives.
Through a four-step synthetic approach, compounds SM1-SM10 were synthesized. These derivatives were subsequently evaluated for their in vitro anti-tubercular potential using the resazurin microtiter assay (REMA), with isoniazid as the standard (MIC 0.25 to 0.5µg/mL).
Among the synthesized compounds, SM2 and SM8 demonstrated remarkable anti-tubercular activity, with MICs of 4 and 6µg/mL, respectively. Notably, these MIC values are considerable for the further development of benzopyran derivatives as potent antitubercular agents.
Outcomes underscore the potential of benzopyran derivatives as valuable assets in TB drug discovery, warranting further exploration and development.
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