Patent ID: 7329288

Claim:
A compound of formula (I): or the addition salts thereof, wherein: R is chosen from pyrroles, pyrazoles, triazoles, oxazoles, isoxazoles, isothiazoles, imidazoles, pyridines, pyrimidines, pyrazines, pyridazines, quinolines, and thiophenes, each of which are optionally substituted with at least one radical chosen from alkyls, alkylcarbonyls, hydroxyls, alkoxys, alkylcarbonylaminos, monoalkylaminos and dialkylaminos; R′ is a hydrogen atom; and n is a number ranging from 1 to 4; with the exception of the following compounds: N-quinol-2-ylbenzene-1,4-diamine N-(4-methylquinol-2-yl)benzene-1,4-diamine N-quinol-4-ylbenzene-1,4-diamine N-(4,6-dimethylpyrimidin-2-yl)-benzene-1,4-diamine 4-(2-pyridylamino)aniline N-(4-pyridyl)-1,4-diaminobenzene.