Synthesis and antiphytoviral activity of α-aminophosphonates containing 3, 5-diphenyl-2-isoxazoline as potential papaya ringspot virus inhibitors

  • Zhi-Gang Zeng
  • Niu Liu
  • Fei Lin
  • Xun-Yuan Jiang
  • Han-Hong XuEmail author
Original Article


α-Aminophosphonates compounds containing 3,5-diphenyl-2-isoxazoline were synthesized and evaluated for their bioactivity. Seventeen of them showed good bioactivity (protection effect > 50%) in vivo against papaya ringspot virus, while two of them (V29 and V45) exhibited excellent antiviral activity (both 77.8%). In the latter case, the antiviral activity was close to that of antiphytovirucides ningnanmycin and dufulin (both 83.3%) at 500 mg/L. The preliminary structure–activity relationships indicated that the bioactivity was strongly influenced by the substituents.

Graphical abstract


α-Aminophosphonates 3, 5-Diphenyl-2-isoxazoline Synthesis Anti-PRSV activity Structure–activity relationships 



This work was financially supported by the National Natural Science Foundation of China (Grant No. 31601675) and the Specialized Research Fund for the Doctoral Program of Education of China (Grant No. 20134404130003). We thank Dr. Xueqin Rao (Department of Plant Pathology, South China Agricultural University) and Dr. Duo Lai (Institute of Fruit Tree Research, Guangdong Academy of Agricultural Sciences, China) for their kind help in screening the compounds for biological activity.

Supplementary material

11030_2018_9877_MOESM1_ESM.docx (19.2 mb)
Supplementary material 1 (DOCX 19635 kb)


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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Zhi-Gang Zeng
    • 1
    • 2
  • Niu Liu
    • 1
  • Fei Lin
    • 1
  • Xun-Yuan Jiang
    • 1
  • Han-Hong Xu
    • 1
    Email author
  1. 1.State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of EducationSouth China Agricultural UniversityGuangzhouPeople’s Republic of China
  2. 2.School of Nuclear Technology and Chemistry & BiologyHubei University of Science and TechnologyXianningPeople’s Republic of China

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