Patent ID: 7227038

Claim:
A compound of formula wherein m represents 1, 2 or 3; each R 1 independently represents a hydrogen or halogen atom; one of R 2 and R 3 represents halogen, nitro, amino, hydroxyl, or a group selected from (i) C 1 –C 6 alkyl optionally substituted by at least one halogen atom, (ii) C 3 –C 8 cycloalkyl, (iii) C 1 –C 6 alkoxy optionally substituted by at least one halogen atom, and (iv) C 3 –C 8 cycloalkyloxy, and the other of R 2 and R 3 represents a hydrogen or halogen atom; n represents 0, 1 or 2; and R 4 and R 5 each independently represent a hydrogen atom or a C 1 –C 6 alkyl group optionally substituted by at least one substituent selected from hydroxyl, halogen and C 1 –C 6 alkoxy; or a pharmaceutically acceptable salt or solvate thereof.