Patent ID: 8389520

Claim:
A compound of the formula (I) in which R 1 represents a heteroaryl group of the formula wherein * denotes the linkage point with the dihydropyrazolone ring and R 4 denotes hydrogen, fluorine, chlorine, bromine, cyano, (C 1 -C 4 ) -alkyl, trifluoromethyl, hydroxymethyl, (C 1 -C 4 )-alkoxy, trifluoromethoxy, hydroxycarbonyl or (C 1 -C 4 )-alkoxycarbonyl, R 2 represents a heteroaryl group of the formula wherein # denotes the linkage point with the dihydropyrazolone ring and R 6 , R 6A and R 6B are identical or different and independently of one another denote hydrogen or a substituent chosen from the group consisting of fluorine, chlorine, bromine, cyano, (C 1 -C 6 )-alkyl, trifluoro -methyl, hydroxyl, (C 1 -C 6 )-alkoxy, trifluoromethoxy, amino, mono -(C 1 -C 4 )-alkylamino, di-(C 1 -C 4 )-alkylamino, hydroxycarbonyl, (C 1 -C 4 )-alkoxycarbonyl, 4-to 6-membered heterocycloalkyl, phenyl and 5-or 6-membered heteroaryl, wherein (C 1 -C 6 )-alkyl in its turn can be substituted by hydroxyl, (C 1 -C 4 ) -alkoxy or amino and 4-to 6-membered heterocycloalkyl, phenyl and 5-or 6-membered heteroaryl in their turn can in each case be substituted once or twice in an identical or different manner by fluorine, chlorine, bromine, cyano, (C 1 -C 4 )-alkyl, trifluoromethyl, hydroxyl, (C 1 -C 4 ) -alkoxy, trifluoromethoxy, oxo, amino, mono-(C 1 -C 4 )-alkylamino, di-(C 1 -C 4 )-alkylamino, hydroxycarbonyl or (C 1 -C 4 )-alkoxy -carbonyl, and R 3 represents hydrogen, or a salt thereof.