A series of isosteric analogs of mandipropamid were designed and synthesized via'click chemistry'. The amide bond of mandipropamid was substituted by a 1, 2, 3-triazole functional group. The bioassay results have indicated that some of the title compounds exhibited moderate fungicidal activity against Pseudoperonospora cubensis, and the activity has been systematically studied as a function of molecular structure. The low activity of the ...