The invention relates to a compound or a salt thereof of formula [1], a fungicidal composition containing the compound or a salt thereof, a method for controlling plant disease occurring from phytopathogenic microorganism including the step of applying the fungicidal composition and a production method of the compound.本發明係關於式[1]表示之化合物或其鹽、包含前述化合物或其鹽之殺菌性組成物、藉由包含施用前述殺菌性組成物之步驟的植物病原性微生物來防除所發生之植物病害之方法及前述化合物之製造方法。