Antimycobacterial agent-1 (compound 33) demonstrates potent antimycobacterial activity against Mycobacterium tuberculosis H37Ra, with a minimal inhibitory concentration (MIC) value of 1 μg ml. Notably, antimycobacterial agent-1 exhibits low cytotoxicity in normal cells, as evidenced by an IC50 value of 143.2 μg ml in Vero cells [1].