Patent ID: 7179835

Claim:
A compound of formula (I) wherein: R 1 represents hydrogen or —C 1-3 alkylCONR a R b ; One of R 2 and R 3 represents —C 1-3 alkyl and the other represents hydrogen; R 4 represents hydrogen, —C 1-4 alkyl, —C 3-4 alkenyl, —C 2-4 alkylOH, —C 2-4 alkylOC 1-4 alkyl, —C 1-4 alkylCN or —C 0-4 alkylC 3-6 cycloalkyl; R 5 represents —C 2-4 alkylOH, —C 1-4 alkyl, —C 2-4 alkylOC 1-4 alkyl, —C 1-4 alkylCN, —C 2-4 alkylNR a R b , —C 2-4 alkylNHCOC 1-3 alkyl, —C 2-4 alkylNHCONR a R b , —C 2-4 alkylNHSO 2 R e , —C 2-4 alkylSO 2 NR a R b , —C 2-4 alkylNHCO 2 C 1-4 alkyl, —C 2-4 alkylNHC(NH 2 )═NR f , or a group X—Y; X represents —C 1-4 alkylene- optionally substitued by —OH, or a direct link, with the proviso that when X is substituted by —OH, X represents C 2-4 alkylene and the —OH group is not alpha with respect to the amide N atom to which the group X is attached; Y represents —C 3-6 cycloalkyl, phenyl, or an aromatic or non-aromatic 5-, 6- or 7-membered heterocyclic group containing at least one heteroatom selected from O, N or S and optionally substituted at C and/or N atoms by —C 1-3 alkyl, C 1-3 alkoxy, C 1-3 alkylOH, halogen, —CN, —CF 3 , —NH 2 , —CO 2 H and —OH; R a and R b independently represent hydrogen or —C 1-4 alkyl; R e represents —C 1-4 alkyl or —CF 3 ; R f represents NO 2 or CN; R 6 represents a group selected from: Z represents an optional substituent halogen, alk represents alkylene or alkenylene, T represents a heteroatom selected from S or N; or a pharmaceutically acceptable derivative thereof.