Abstract
In this work, we reported the synthesis of novel indanedione-based azo dyes by a conventional diazo coupling reaction at 0–5°C. The synthesized dyes were characterized by using different spectroscopic techniques like FT-IR, 1H NMR and HRMS. The indanedione-based azo dyes were examined for cytotoxic activity against MIAPaCa-2 pancreatic cancer cell lines. 2-[(E)-1,3-Benzothiazol-2-yldiazenyl]-1H-indene-1,3(2H)-dione showed a good reduction in cell viability against MIAPaCa-2 cell line in a concentration dependent manner compared to other compounds. Further, the synthesized azo dyes were screened for DPPH radical scavenging activity in which 2-[(E)-1,3-thiazol-2-yldiazenyl]-1H-indene-1,3(2H)-dione, 2-[(E)-(6-ethoxy-1,3-benzothiazol-2-yl)diazenyl]-1H-indene-1,3(2H)-dione, and 2-[(E)-(4-nitrophenyl)diazenyl]-1H-indene-1,3(2H)-dione showed good scavenging activity with IC50 values of 116.68±1.2, 20.73±7.54 and 129.49±34.25 µg/mL when compared to standard. Furthermore, synthesized indanedione-based azo dyes exhibited appreciable binding affinity with the HIF-1 receptor. Among the synthesized compounds, 2-[(E)-(4-nitrophenyl)diazenyl]-1H-indene-1,3(2H)-dione exhibited a higher binding affinity (–8.9 kcal/mol) by establishing two hydrogen bonds.
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ACKNOWLEDGMENTS
Authors are thankful to the Chairman, Department of Chemistry, Kuvempu University for providing the laboratory facilities and to the University of Mysore for providing spectroscopic study facility.
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This work was supported by ongoing institutional funding. No additional grants to carry out or direct this particular research were obtained.
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Navaneethgowda, P.V., Bodke, Y.D., Manjunatha, B. et al. Novel 1,3-Indenedione-Based Azo Dyes: Synthesis, Characterization, Solvatochromic UV-Vis Absorption Study, and Biological Activity. Russ J Gen Chem 93 (Suppl 4), S876–S884 (2023). https://doi.org/10.1134/S1070363223170048
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DOI: https://doi.org/10.1134/S1070363223170048