Patent ID: 7081456

Claim:
A compound of formula (I) or a pharmaceutically or veterinarily acceptable salt thereof: wherein R 1 and R 3 independently represent H; F; Cl; Br; —NO 2 ; —CN; C 1 –C 6 alkyl optionally substituted by F or Cl; or C 1 –C 6 alkoxy optionally substituted by F; R 2 represents H, or optionally substituted C 1 –C 6 alkyl, C 3 –C 7 cycloalkyl or optionally substituted phenyl; Y represents —O—, —S—, N-oxide, or —N(R 5 )—wherein R 5 represents H or C 1 –C 6 alkyl; X represents a bond or a divalent C 1 –C 6 alkylene radical; R 4 represents —C(═O)NR 6 R 7 , wherein R 6 represents a radical of formula -(Alk) b -Q wherein b is 1 and Alk is an optionally substituted divalent straight chain or branched C 1 –C 12 alkylene, C 2 –C 12 alkenylene or C 2 –C 12 alkynylene radical which may be interrupted by one or more non-adjacent —O—, —S— or —N(R 8 )—radicals wherein R 8 represents H or C 1 –C 4 alkyl, C 3 –C 4 alkenyl, C 3 –C 4 alkynyl, or C 3 –C 6 cycloalkyl, and Q represents H; —CF 3 ; —OH; —SH; —NR 8 R 8 wherein each R 8 may be the same or different; an ester group; or an optionally substituted phenyl, C 3 –C 7 cycloalkyl, C 5 –C 7 cycloalkenyl or heterocyclic ring having from 5 to 8 ring atoms; and R 7 represents H or C 1 –C 6 alkyl; or when taken together with the atom or atoms to which they are attached R 6 and R 7 form an optionally substituted heterocyclic ring having from 5 to 8 ring atoms.