PROBLEM TO BE SOLVED: To provide a novel amidine compound excellent in bactericidal property and safety and capable of being industrially advantageously synthesized and a bactericidal agent or plant disease control agent containing the amidine compound as an active ingredient.SOLUTION: There is provided a compound represented by the formula [I] or a salt hereof. [I], where Y is an unsubstituted/substituted bivalent cyclic amine residue, X and Z are each independently an unsubstituted/substituted alkylene group or the like, W is a singe bond or -N(R5)-, R5 is H, an unsubstituted/substituted heterocycle group or the like, R1 to R3 are each independently H, an unsubstituted/substituted hydrocarbon group or the like, A is an aryl group or a heteroaryl group substituted by carboxy amidine.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】殺菌活性、安全性に優れ、且つ工業的に有利に合成できる新規なアミジン化合物、及び該アミジン化合物を有効成分として含有する殺菌剤又は植物病害防除剤の提供。【解決手段】式〔I〕で表されるアミジン化合物又はその塩。(Yは無置換/置換の二価の環状アミン残基;X及びZは夫々独立に無置換/置換のアルキレン基等;Wは単結合又は-N(R5)-;R5はH、無置換/置換のヘテロシクロ基等;R1~R3は夫々独立にH、無置換/置換の炭化水素基等;Aはカルボキシアミジンで置換されたアリール基又はヘテロアリール基)【選択図】なし
