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    • The “Left-hand strategy” for design, synthesis and discovery of novel triazole-mercaptobenzothiazole hybrid compounds as potent quorum sensing inhibitors and anti-biofilm formation of Pseudomonas aeruginosa
    Authors: Truong, Thanh Tung; Huy, Luong Xuan;  Advisor: -;  Co-Author: - (2021)

    Herein, a library of novel hybrid 6-(4-substituted-1H-1,2,3-triazol-1-yl)-2-mercaptobenzothiazoles was designed using a “left-hand strategy” and synthesized using microwave-assisted synthesis. The synthesized compounds were screened against quorum sensing activities and biofilm formation of Gram-negative bacteria. Biological results reveal that eleven compounds strongly inhibited the quorum sensing activities of the Pseudomonas aeruginosa lasB-gfp reporter strain.Compounds 4g (IC50 of 9.84 ± 1.10 μM), 4h (IC50 of 6.09 ± 0.98 μM), and 4m (IC50 of 12.20 ± 0.25 μM) are 2–5 times stronger than the reference compound 4NPO (IC50 of 32 ± 0.88 μM) in QSI screening. Compounds 4g and 4h inhibited up to 90% of the biofilm formation of Pseudomonas aeruginosa. In terms of anti-virulence effe...