Abstract
The ever-increasing drug-resistant tuberculosis (TB) has invigorated the focus on the discovery and development of novel therapeutic agents and treatment options. Thiazolidinone-based compounds have shown good antitubercular properties in vitro. Here, we report the design and synthesis of a number of new derivatives inspired by the structure of thiazolidine-2,4-dione (TZD). The TZD-based hybrids with the thiosemicarbazone or the pyridinecarbohydrazone moiety were synthesised and their antimycobacterial activity was investigated against the reference H37Rv and two wild Mycobacterium tuberculosis (Mtb) strains. In further studies, a two-drug interaction analysis was also performed for assessing their synergism with the current first-line drugs used for the treatment of TB. It was found that some of the compounds showed high antimycobacterial activity with MICs (0.078–0.283 µM) and a synergistic effect with isoniazid or rifampicin, thereby demonstrating their potential as a promising scaffold for the development of novel coadjuvants for the effective treatment of TB.
Published Version
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