Novel phosphorescent heteroleptic iridium complexes with phenylpyridine and dibenzo-containing ligands are provided. Alkyl substitution at specific positions on the ligands gives rise to compounds with improved OLED properties, including saturated green emission.
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. A compound represented by formula (I) (wherein A
1
represents a nitrogen atom or a group represented by formula CR
6
; A
2
and A
3
are the same as or different from each other and independently represent a nitrogen atom or a group represented by formula CH; R
1
represents an aryl group which may be substituted by 1 to 5 substituents independently selected from a substituent group (2) or the like; R
2
and R
3
are the same as or different from each other and independently represent a hydrogen atom, a halogen atom, a C
1-6
alkyl group, a C
1-6
haloalkyl group or a C
1-6
alkoxy group; and R
4
and R
5
are the same as or different from each other and independently represent a hydrogen atom, a C
1-6
haloalkyl group, a C
1-6
alkyl group or the like) or a salt thereof is useful as an anti-fungal agent.