Abstract: An amidine compound represented by formula (I) (wherein A1 represents a nitrogen atom or a group represented by formula CR6; A2 and A3 are the same as or different from each other and independently represent a nitrogen atom or a group represented by formula CH; R1 represents an aryl group which may be substituted by 1 to 5 substituents independently selected from a substituent group (2) or the like; R2 and R3 are the same as or different from each other and independently represent a hydrogen atom, a halogen atom, a C1-6 alkyl group, a C1-6 haloalkyl group or a C1-6 alkoxy group; and R4 and R5 are the same as or different from each other and independently represent a hydrogen atom, a C1-6 haloalkyl group, a C1-6 alkyl group or the like) or a salt thereof. The compound is useful as an anti-fungal agent.

Abstract: A pharmaceutical composition containing one or more antifungal agents selected from an arylamidine derivative represented by the general formula: (wherein R1 represents an amidino group that may be substituted with a hydroxyl group that may be protected with an acyl group, an amidino group that may be substituted with an alkoxy group that may be substituted, or an amidino group that may be substituted with an aralkyloxy group that may be substituted; R2 and R3 identically or differently represent a hydrogen atom or a halogen atom) or a salt thereof, an azole antifungal agent, a polyene antifungal agent, a candin antifungal agent and a fluoropyrimidine antifungal agent has a strong antifungal activity and is useful for the treatment of fungal infection. A method for using them in combination is useful as an excellent therapeutic method for fungal infection.

Abstract: The purpose of the present invention is to provide a novel compound which has an anti-fungal activity on pathogenic fungi including fungi belonging to the genus Candida, the genus Aspergillus and the genus Trichophyton and is useful as a medicinal agent.

Abstract: A pharmaceutical composition containing one or more antifungal agents selected from an arylamidine derivative represented by the general formula: (wherein R1 represents an amidino group that may be substituted with a hydroxyl group that may be protected with an acyl group, an amidino group that may be substituted with an alkoxy group that may be substituted, or an amidino group that may be substituted with an aralkyloxy group that may be substituted; R2 and R3 identically or differently represent a hydrogen atom or a halogen atom) or a salt thereof, an azole antifungal agent, a polyene antifungal agent, a candin antifungal agent and a fluoropyrimidine antifungal agent has a strong antifungal activity and is useful for the treatment of fungal infection. A method for using them in combination is useful as an excellent therapeutic method for fungal infection.