MtTMPK-IN-4 (compound 2), a para-piperidine, is a highly potent inhibitor of thymidylate kinase (MtTMPK) in Mycobacterium tuberculosis, exhibiting an IC50 value of 6.1 μM. Additionally, it possesses remarkable inhibitory activity against tyrosinase. Furthermore, MtTMPK-IN-4 exhibits potent antibacterial properties [1] [2].