Chinese Journal of Applied Chemistry ›› 2023, Vol. 40 ›› Issue (1): 116-125.DOI: 10.19894/j.issn.1000-0518.220128

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Synthesis, Antifungal Activity and Molecular Docking Study of 1,2,4-Triazole Bis-Schiff Base Derivatives

Mou-Cui LI, Yang-Ming DONG, Ying-Hui REN(), Hai-Xia MA, Le QI   

  1. Schoolof Chemical Engineering,Northwest University,Xi'an Key Laboratory of Special Energy Materials,Xi'an 710069,China
  • Received:2022-04-12 Accepted:2022-10-08 Published:2023-01-01 Online:2023-01-28
  • Contact: Ying-Hui REN
  • About author:nwuryh@163.com
  • Supported by:
    the Provincial Key-point Natural Science Foundation of Shaanxi, China(2016JZ003)

Abstract:

In this paper, five compounds (D1-D5) are successfully synthesized from 3,5-diamino-1,2,4-triazole and substituted benzaldehyde. The in vitro antifungal activities of the compounds against Fusarium graminearum are studied by the mycelial growth rate method and molecular docking technology. The results show that, except for compound D3, the activities of the others are superior to that of the control drug fluconazole, and the inhibitory effect of compound D1 is about 1.8 times than that of the control drug, which could be used as the lead compound against Fusarium graminearum. The results of molecular docking are consistent with the biological activity, that is, the lower the docking binding energy, the stronger the activity against Fusarium graminearum, and hydrogen bonding is the key factor to maintain the stable binding between the drug molecule and the receptor protein. In order to overcome the drug resistance of pathogenic bacteria, the antibacterial effect of the most active compounds D1 and D2 with the fluconazole combined system are investigated, and the results exhibit that co-toxicity coefficient (CTC) values are greater than 120, which shows the synergistic effect when the mass ratio of compound D1 and fluconazole is 1∶2, D2 and fluconazole is 1∶1, 1∶1, 1∶2, 1∶4 and 4∶1, so compound D2 is expected to be a promising compound dispensing agent.

Key words: 1, 2, 4-Triazole, Bis-schiff base, Antifungal activity, Synergistic combinations, Molecular docking

CLC Number: