Patent ID: 7195649

Claim:
A N-aryl-4,5-diaminopyrazole of formula I, or a physiologically compatible salt thereof with an organic or inorganic acid: wherein R1 and R2, independently of each other, each denote a straight-chain or branched C 1 –C 6 -alkyl group, a hydroxyl group, a straight-chain or branched C 1 –C 6 -monohydroxyalkyl group, a straight-chain or branched C 3 –C 6 -dihydroxy-alkyl group, a straight-chain or branched C 1 –C 6 -alkoxy group, a straight-chain or branched C 1 –C 6 -hydroxyalkoxy group, a straight-chain or branched C 3 –C 6 -dihydroxyalkoxy group, an amino group, a C 1 –C 4 -monoalkylamino group, a di(C 1 –C 4 )-alkylamino group, a C 1 –C 4 -aminoalkyl group, a halogen atom, a difluoromethyl group, or a trifluoromethyl group; Y stands for a C—R3 group, wherein C is a carbon atom of the aryl group in the formula I and R3 is a hydrogen atom, a straight-chain or branched C 2 –C 6 -hydroxyalkoxy group, or a straight-chain, or branched C 2 –C 6 -alkoxyalkoxy group, or Y stands for a C—H group, R1 denotes a hydrogen atom and R2 denotes an amino group in position 4 of the aryl group of the formula I; and X denotes an acid radical and n has a value from 0 to 3.