2,4-diphenyl substituted imidazole compound and application of suspending agent thereof in treating and controlling wheat sheath blight

The invention discloses a 2,4-diphenyl substituted imidazole compound of the formula I or a pharmaceutically acceptable salt thereof, the formulas are shown in the description. By the antibacterial activity of the compound against wheat sheath blight, the field efficacy test of wheat sheath blight, and the effect test of the germination of wheat, the compound provided by the invention can be significantly and long-lasting resistant to wheat sheath blight, and has no effect on the germination and emergence of wheat. 本发明公开了如式I所示的2，4-二苯基取代的咪唑类化合物或其药学上可接受的盐，通过所述化合物对小麦纹枯病的抑菌活性研究、小麦纹枯病田间药效试验以及对小麦发芽情况的影响试验，发现本发明所述化合物能够显著且长效对抗小麦纹枯病，并且对小麦的发芽及出苗无影响。