Abstract
Background: Thiosemicarbazone, 1,2,3-triazole and their derivatives received great
pharmaceutical importance due to their prominent biological activities. In the present study, the
molecular hybrid thiosemicarbazone-1,2,3-triazoles derivatives were synthesized and screened for
their antimicrobial activities.
Methods: A series of thiosemicarbazone clubbed with 1,2,3-triazole derivatives were synthesized
via click chemistry approach in good yields. The structures of synthesized compounds were assigned
by their spectral data. The in vitro antimicrobial activity was performed by the agar well diffusion
method. A molecular docking study was performed to identify the possible mode of action
of synthesized derivatives.
Results: The compounds 5d, 5h, 5i and 5k exhibited excellent antimicrobial activities against both
antibacterial and antifungal pathogens. The active thiosemicarbazone-1,2,3-triazole derivatives
showed excellent binding affinity towards DNA gyrase.
Conclusion: The molecular hybrid thiosemicarbazone-1,2,3-triazole derivatives were synthesized.
The newly synthesized compounds were evaluated for their antimicrobial activities. Few of the
thiosemicarbazone-1,2,3-triazoles derivatives have exhibited good antimicrobial activities. They
have shown excellent binding affinity towards DNA gyrase.
Keywords:
1, 2, 3-triazole, thiosemicarbazone, antimicrobial Activity, molecular Docking Study, click Chemistry.
Graphical Abstract
[34]
(a) Chauhan S, Verma V, Kumar D, Kumar A. Synthesis, antimicrobial evaluation and docking study of triazole containing triaryl-1H-imidazole. Synth Commun 2019; 49: 1427-35.
[
http://dx.doi.org/10.1080/00397911.2019.1600192] ; (b) Lal K, Yadav P, Kumar A. Synthesis, characterization and antimicrobial activity of 4-((1-benzyl/phenyl-1H-1,2,3-triazol-4-yl)methoxy)benzaldehyde analogues. Med Chem Res 2016; 25: 644-52.
[
http://dx.doi.org/10.1007/s00044-016-1515-0] ; (c) Teng Y, Qin Y, Song D,
et al. A novel series of 11-O-carbamoyl-3-O-descladinosyl clarithromycin derivatives bearing 1,2,3-triazole group: Design, synthesis and antibacterial evaluation. Bioorg Med Chem Lett 2020; 30(2)126850
[
http://dx.doi.org/10.1016/j.bmcl.2019.126850] [PMID:
31836439] ; (d) Marepu N, Yeturu S, Pal M. 1,2,3-Triazole fused with pyridine/pyrimidine as new template for antimicrobial agents: Regioselective synthesis and identification of potent N-heteroarenes. Bioorg Med Chem Lett 2018; 28(20): 3302-6.
[
http://dx.doi.org/10.1016/j.bmcl.2018.09.021] [PMID:
30243590] ; (e) El-Sayed HA, Abdel Hamid AM, Mohammed SM, Moustafa AH. Design, synthesis, and antimicrobial activity of fluorophore 1,2,3-triazoles linked nicotinonitrile derivatives. Synth Commun 2019; 49: 2096-105.
[
http://dx.doi.org/10.1080/00397911.2019.1616760] ; (f) Tittal RK, Yadav P, Lal K, Kumar A. Synthesis, molecular docking and DFT studies on biologically active 1, 4-disubstituted-1, 2, 3-triazole-semicarbazone hybrid molecules. New J Chem 2019; 43: 8052-8.
[
http://dx.doi.org/10.1039/C9NJ00473D] ; (g) Singh H, Singh JV, Gupta MK,
et al. Triazole tethered isatin-coumarin based molecular hybrids as novel antitubulin agents: Design, synthesis, biological investigation and docking studies. Bioorg Med Chem Lett 2017; 27(17): 3974-9.
[
http://dx.doi.org/10.1016/j.bmcl.2017.07.069] [PMID:
28797799]