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  • Title: Synthesis, biological evaluation and molecular modeling of 1,3,4-thiadiazol-2-amide derivatives as novel antitubulin agents.
    Author: Li YJ, Qin YJ, Makawana JA, Wang YT, Zhang YQ, Zhang YL, Yang MR, Jiang AQ, Zhu HL.
    Journal: Bioorg Med Chem; 2014 Aug 01; 22(15):4312-22. PubMed ID: 24909678.
    Abstract:
    A series of 1,3,4-thiadiazol-2-amide derivatives (6a-w) were designed and synthesized as potential inhibitors of tubulin polymerization and as anticancer agents. The in vitro anticancer activities of these compounds were evaluated against three cancer cell lines by the MTT method. Among all the designed compounds, compound 6f exhibited the most potent anticancer activity against A549, MCF-7 and HepG2 cancer cell lines with IC₅₀ values of 0.03 μM, 0.06 μM and 0.05 μM, respectively. Compound 6f also exhibited significant tubulin polymerization inhibitory activity (IC₅₀=1.73 μM), which was superior to the positive control. The obtained results, along with a 3D-QSAR study and molecular docking that were used for investigating the probable binding mode, could provide an important basis for further optimization of compound 6f as a novel anticancer agent.
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