Patent ID: 8093238

Claim:
A compound of formula (I), or a pharmaceutically acceptable salt thereof: wherein —X— represents a group of formula (b): Y represents CH or N; R 1 and R 2 independently represent hydrogen, halogen, nitro, hydroxy, C 1-6 alkyl, optionally substituted aryl, optionally substituted heteroaryl, —NR a R b , —CONR a R b , —NR a COR c , —N(COR c ) 2 , —NR a SO 2 R c , —CO 2 R d or —OR c ; R a represents hydrogen, C 1-6 alkyl or heteroaryl; and R b represents hydrogen; or C 1-6 alkyl, aryl, C 3-7 heterocycloalkyl(C 1-6 )alkyl, heteroaryl or heteroaryl(C 1-6 )alkyl, any of which groups may be optionally substituted by one or more substituents; or R a and R b , when taken together with the nitrogen atom to which they are both attached, represent optionally substituted C 3-7 heterocycloalkyl; R c represents C 1-6 alkyl, aryl or heteroaryl, any of which groups may be optionally substituted by one or more substituents; R d represents C 1-6 alkyl; and R e represents optionally substituted heteroaryl, wherein said optional substituents on R 1 , R 2 , R b or R c , or on the cyclic moiety —NR a R b , are selected from the group consisting of halogen, C 1-6 alkyl, C 1-6 alkoxy, di(C 1-6 )alkylamino, C 2-6 alkoxycarbonyl, hydroxy(C 1-6 )alkyl, hydroxy(C 1-6 )alkylamino, hydroxy-[(C 1-6 )alkoxy](C 1-6 )alkyl and C 1-6 alkoxy(C 2-6 )alkenyl, and wherein said optional substituents on R c are selected from the group consisting of C 1-6 alkyl and heterocycloalkyl.