Patent ID: 7384975

Claim:
A compound of the formula (I) wherein A and B taken together with the carbon atoms to which the are attached, each independently represent an aromatic moiety, which is unsubstituted or substituted by one or more substituents which are each independently selected from the group consisting of halogen, C 1 -C 4 -alkyl, C 2 -C 4 -alkenyl, C 2 -C 4 -alkynyl, halo-C 1 -C 4 -alkyl, hydroxy, C 1 -C 4 -alkoxy, trifluoromethoxy, C 1 -C 4 -alkanoyl, amino, amino-C 1 -C 4 -alkyl, N-(C 1 -C 4 -alkyl)amino, N,N-di(C 1 -C 4 -alkyl)amino, sulfanyl, C 1 -C 4 -alkylsulfanyl, sulfo, C 1 -C 4 -alkylsulfo, sulfino, C 1 -C 4 -alkylsulfino, carboxy, C 1 -C 4 -alkoxycarbonyl, cyano, and nitro, or a tautomer, or pharamaceutically acceptable salt thereof.