Chinese Journal of Applied Chemistry ›› 2025, Vol. 42 ›› Issue (5): 693-700.DOI: 10.19894/j.issn.1000-0518.240365

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Synthesis and Antitumor Activity of Benzophenone Thiosemicarbazone Derivatives

Yi-Fei LIU, Yu-Xi LI, Jia-Xin MO, Lu YU, Shi-Yi YANG, Jiang-Li SONG()   

  1. School of Chemistry & Chemical Engineering,Lingnan Normal University,Zhanjiang 524048,China
  • Received:2024-11-14 Accepted:2025-03-05 Published:2025-05-01 Online:2025-06-05
  • Contact: Jiang-Li SONG
  • About author:jiangli_song@lingnan.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21502085);the Special Funds for Public Welfare Research and Capacity Building of Guangdong Province(2015A020211038)

Abstract:

In order to discover novel and highly active anti-tumor drug candidates, six benzophenone thiosemicarbazone compounds were designed and synthesized by introducing halogens to replace 3-hydroxyl and 3'-bromine in the 4,4'-position with 3-hydroxyl, 3'- bromobenzophenone thiosemicarbazone (KGP94) as the lead, and the antitumor activities of these compounds were studied. The structures of the target compounds were characterized by infrared spectroscopy, nuclear magnetic resonance and mass spectrometry, and the structure of the target compound Ⅲe was further confirmed by crystal test. Human breast cancer cells (MCF-7 and MDA-MB-231), Prostate cancer cells (DU145) and human malignant melanoma cells (SK-mel-2) were selected as test cells, and the antitumor activity of the compounds in vitro was evaluated by Cell Counting Kit-8(CCK-8). The results indicated that compounds containing chlorine and bromine substituents exhibited significant anti-tumor activity. Notably, 4,4'-dichlorobenzophenone thiosemicarbazone (Ⅲe) demonstrated superior anti-proliferative effects against MCF-7, MDA-MB-231, and SK-mel-2 cells with IC50 values of 12.05, 11.14, and 13.11 μmol/L, respectively. Its activity was better than that of both positive control doxorubicin (DOX) and KGP94.The results of molecular docking show that compound Ⅲe can bind topoisomerasewell, which provides clues for the research of antitumor drugs.

Key words: Benzophenone, Thiosemicarbazone, Halogen, Antitumor activity

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