Patent ID: 6867220

Claim:
A compound of formula (I) where R 1 represents a hydrogen or halogen atom or an —S(O) z —(C 1 -C 4 )alkyl, —S(O) z —(C 1 -C 4 )R 3 , —SO 2 —NH—(C 1 -C 4 )alkyl, —NHCO(C 1 -C 4 )alkyl, —CO(C 1 -C 4 )alkyl or —NHSO 2 —(C 1 -C 4 )alkyl group; m and n independently represent 0, 1 or 2; A represents a group of formula (a) or (b): where x is N or CH; R 2 represents an —SO 2 —R 3 , —CO—R 3 or —CO—(C 1 -C 4 )-alkyl group; R 3 represents a phenyl group, optionally substituted by a (C 1 -C 4 )alkyl or (C 1 -C 4 )alkoxy group, one or two halogen atoms or a heterocycle; R 4 represents a hydrogen or halogen atom or a (C 1 -C 6 )alkyl, (C 1 -C 4 )alkoxy, —COOH, —COO(C 1 -C 4 )alkyl, —CN, —CONR 5 R 6 , —NO 2 , or —SO 2 NR 5 R 6 group; z is 1 or 2; R 5 and R 6 independently represent a hydrogen atom or a (C 1 -C 4 )alkyl, phenyl or phenyl(C 1 -C 4 )alkyl group; or a salts or solvates thereof.