Chem. J. Chinese Universities ›› 2021, Vol. 42 ›› Issue (9): 2766.doi: 10.7503/cjcu20210313

• Organic Chemistry • Previous Articles     Next Articles

Design, Synthesis and Antifungal Activity of Novel Isoquinoline Derivatives

ZUO Huailong1, LEI Simin1, ZHANG Rui1, LI Yuxin2, CHEN Wei1()   

  1. 1.Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering,Southwest Jiaotong University,Chengdu 610031,China
    2.State Key Laboratory of Elemento?Organic Chemistry,Nankai University,Tianjin 300071,China
  • Received:2021-05-06 Online:2021-09-10 Published:2021-09-08
  • Contact: CHEN Wei E-mail:chenweicstq@163.com
  • Supported by:
    the National Natural Science Foundation of China(21702173);the Science and Technology Planning Project of Sichuan, China(2021YJ0481)

Abstract:

Based on biomimetic synthetic strategy and reasonable pharmacophore splicing, fifteen novel isoquinoline derivatives were designed and synthesized by introducing the active fragment of diphenyl ether into the 3,4-dihydroisoquinoline skeleton. Their chemical structures were confirmed by nuclear magnetic resonance(NMR) and high resolution mass spectrometry(HRMS). In vitro antifungal activity results showed that at 50 mg/L, the inhibition rates of compounds Ic, Ie and Il against Physalospora piricola and Rhizotonia cerealis were as high as 93.0%, which were better than Sanguinarine and equivalent to Chlorothalonil. The inhibition rate of compound Il against Fusarium graminearum was 83.3%, which was much better than Sanguinarine(64.2%) and Chlorothalonil(57.7%). In addition, the inhibition rate of compound Il against five plant pathogens was higher than that of Sanguinarine.

Key words: Isoquinoline derivative, Diphenyl ether, Biomimetic synthesis, Antifungal activity

CLC Number: 

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