Chemical Research in Chinese Universities ›› 2020, Vol. 36 ›› Issue (5): 795-803.doi: 10.1007/s40242-020-0014-5

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Synthesis of Caffeic Acid Sulphonamide Derivatives and Preliminary Exploration of Their Biological Applications

PENG Xiaoyu1,5, ZHAO Anran3, HUANG Kelin5, HU Tingju1, LIU Buming4, HUANG Yan4, CHEN Hailan1,2, CHAI Ling4, LIN Cuiwu1   

  1. 1. School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P. R. China;
    2. School of Animal Science and Technology, Guangxi University, Nanning 530004, P. R. China;
    3. Laboratory Medicine Department, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, P. R. China;
    4. Guangxi Key Laboratory of Traditional Chinese Medicine Quality Standards, Guangxi Institute of Traditional Medical and Pharmaceutical Sciences, Nanning 530022, P. R. China;
    5. China Academy of Science and Technology Development Guangxi Branch, Nanning 530022, P. R. China
  • Received:2020-01-16 Revised:2020-04-21 Online:2020-10-01 Published:2020-10-01
  • Contact: CHEN Hailan, CHAI Ling, LIN Cuiwu E-mail:hlchen@gxu.edu.cn;cicichai001@163.com;lincuiwu@gxu.edu.cn
  • Supported by:
    Supported by the Guangxi Natural Science Foundation, China(No.2016GXNSFBA380053) and the Fund of the Guangxi Key Laboratory of Traditional Chinese Medicine Quality Standards, China(No.Guizhongzhongkai201505).

Abstract: Structural modification of native compounds is an effective way to develop new drugs with increased pharmacological activities and improved material characteristics. In this study, caffeic acid sulphonamide derivatives(CSs) were synthesised by conjugating sulphonamides to the backbone of caffeic acid. The structures of these derivatives were elucidated by means of Fourier transform infrared spectroscopy(FTIR), 1H NMR, 13C NMR, and electrospray ionization mass spectroscopy(ESI-MS). A content determination method was established by ultraviolet detection. The lipophilicity, 2,2-diphenyl-1-picrylhydrazy free radical(DPPH) scavenging capacity, anti-coagulant effects, anti-bacterial activity, cytotoxicity, in vitro anti-proliferative activity against tumour cells, and the ability of the compounds to promote the proliferation of chondrocytes were evaluated. The results indicate that CSs exhibit strong DPPH scavenging activity, high lipophilicity, good anti-coagulant activities, wide anti-bacterial activity range, low cytotoxicity, and an excellent ability to promote chondrocyte proliferation.

Key words: Caffeic acid, Sulphonamide, Lipophilicity, Anti-oxidant, Cytotoxicity