Chinese Journal of Applied Chemistry ›› 2020, Vol. 37 ›› Issue (9): 994-1002.DOI: 10.11944/j.issn.1000-0518.2020.09.200040

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Synthesis of 3,6-Disubstituted Triazolothiadiazole Derivatives and Their Inhibitory Activities Against Cell Division Cycle 25B Phosphatase and Protein Tyrosine Phosphatase 1B

LI Yingjuna*, YANG Hongjinga, CAO Xina, GAO Lixinb, JIN Kunc, SHENG Lib, LIU Jihongd, LIU Xuejiea, LI Jiab*   

  1. aCollege of Chemistry and Chemical Engineering,Liaoning Normal University,Dalian,Liaoning 116029,China;
    bNational Center for Drug Screening,State Key Laboratory of Drug Research,Shanghai Institute of Materia Medica,Chinese Academy of Sciences,Shanghai 201203,China;
    cState Key Laboratory of Fine Chemicals,Dalian University of Technology,Dalian,Liaoning 116012,China;
    dChemistry Analysis and Inspection Center,Dalian University of Technology,Dalian,Liaoning 116023,China
  • Received:2020-02-16 Published:2020-09-01 Online:2020-09-09
  • Contact: LI Yingjun, professor; Tel:0411-82158329; E-mail:chemlab.lnnu@163.com; Research interests:organic synthesis;LI Jia, professor; Tel:021-50801313-246; E-mail:jli@simm.ac.cn; Research interests:drug research and development
  • Supported by:
    Supported by the Natural Science Foundation of Liaoning Province(No.20102126)

Abstract: A series of 3,6-disubstituted triazolothiadiazole derivatives 3a-3l containing benzimidazole/aryloxymethyl scaffolds was synthesized. Their structures were confirmed by Fourier transform infrared spectrometry (FT-IR), nuclear magnetic resonance spectroscopy (NMR) and elemental analysis. The inhibitory activity of all synthesized target compounds against cell division cycle 25B phosphatase (Cdc25B)/protein tyrosine phosphatase 1B (PTP1B) was evaluated, and the structure-activity relationship was discussed. The bioassay results show that target compound 3a has the highest inhibitory activity against Cdc25B and PTP1B with the half inhibitory concentration (IC50) values of (0.46±0.02) μg/mL and (1.77±0.40) μg/mL, respectively. The obtained research results provide a reference for the development of novel Cdc25B/PTP1B inhibitors.

Key words: triazolothiadiazole, benzimidazole, aryloxyacetic acid, cell division cycle 25B phosphatase inhibitor, protein tyrosine phosphatase 1B inhibitor