Patent ID: 8367682

Claim:
A compound of formula (1) wherein X 1 and X 2 are each independently halogen; and A is a radical of formula (2a) wherein R 1a is methyl, ethyl, isopropyl, 1- or 2-hydroxyethyl, hydroxy, methoxy, ethoxy, trifluoromethoxy, methylthio, chlorine, fluorine, amino, N-mono- or N,N-dimethylamino, N-mono- or N,N-diethylamino, N-2-hydroxyethylamino N,N-dimethylaminomethyl, N,N-diethylaminomethyl, or morpholinyl, and R 1b is H, halogen, C 1 -C 2 -alkoxy, C 1 -C 2 -alkyl, halo-C 1 -C 2 -alkyl or halo-C 1 -C 2 -alkoxy; in free form or in salt form.