A compound of Formula (I), or a salt thereof, compositions comprising the compound, processes for its preparation and its use in therapy, 例如 in the treatment of parasitic diseases such as Chagas disease, Human African Trypanosomiasis (HAT) and leishmaniasis, particularly visceral leishmaniasis (VL).本發明係關於一種式(I)化合物,或其鹽,包含該化合物之組成物,其製備方法及其於治療上之用途,例如於治療寄生蟲病如美洲錐蟲病、非洲人類錐蟲病(HAT)及利什曼氏病,特別為內臟利什曼氏病(VL)。