Patent ID: 7211586

Claim:
A compound of formula (I): wherein: R 1 represents R 3 NH—Ar 1 —L 2 ; R 2 represents hydrogen, halogen, C 1-4 alkyl or C 1-4 alkoxy; R 3 represents optionally substituted aryl; R 5 represents alkyl, alkenyl, alkynyl, aryl, arylalkyl, arylalkenyl, arylalkynyl, cycloalkyl, cycloalkylalkyl, cycloalkylalkenyl, cycloalkylalkynyl, cycloalkenyl, cycloalkenylalkyl, heteroaryl, heteroarylalkyl, heteroarylalkenyl, heteroarylalkynyl, heterocycloalkyl or heterocycloalkylalkyl; Ar 1 represents a fully unsaturated 8- to 10-membered bicyclic ring system containing at least one heteroatom selected from O, S or N, optionally substituted by one or more aryl group substituents; L 1 represents R 5 ; L 2 represents an alkylene chain; Y is carboxy; and the corresponding N-oxides and ester prodrugs thereof, and the pharmaceutically acceptable salts and solvates of such compounds, and the N-oxides and ester prodrugs thereof.