Patent ID: 6939382

Claim:
A compound chosen from 4,5-diaminopyrazole derivative compounds of formula (I) and the addition salts thereof with a physiologically acceptable acid or base: wherein R 1 , R 2 , and R 3 , which may be identical or different, are chosen from a hydrogen atom; linear and branched alkyl radicals and linear and branched alkenyl radicals wherein the alkyl and alkenyl radicals may be substituted with at least one group chosen from OR, NRR′, SR, SOR, SO 2 R, COOR, CONRR′, PO(OH) 2 and SO 3 X groups, cationic and non-cationic heterocycles, aryl groups and halogen atoms; R 1 and R 2 together may form a heterocycle comprising at least four atoms including the nitrogen atom to which they are attached; R 3 is chosen from alkoxy, amino, alkylamino and dialkylamino radicals; B is chosen from linear and branched, saturated and unsaturated C 1 -C 14 hydrocarbon-based chains, which may comprise at least one bond chosen from double and triple bonds and which may be substituted with at least one group chosen from OR. NRR′, SR, SOR, SO 2 R, COOR, CONRR′, PO(OH) 2 and SO 3 X groups, cationic and non-cationic heterocycles, aryl groups and halogen atoms; this hydrocarbon-based chain comprising at least one quaternary ammonium radical; R and R′, which may be identical or different, are chosen from a hydrogen atom, linear and branched C 1 -C 6 alkyl groups and linear and branched C 2 -C 6 alkenyl groups, R and R′ may form, with the nitrogen atom to which they are attached, an at least 4-membered heterocycle which may comprise at least one additional hetero atom chosen from O, N and S; R and R′ or the heterocycle that they form with the nitrogen atom to which they are attached may be substituted with a radical chosen from alkyl, alkoxy, hydroxyalkyl and aminoalkyl radicals; X is chosen from a hydrogen atom, alkali metal atoms, alkaline-earth metal atoms and ammonium groups.