Patent ID: 8247562

Claim:
A compound of the formula (I): wherein: Ring A is piperidinyl, wherein the nitrogen within the piperidinyl ring can be optionally substituted by K; K is independently selected from C 1-8 alkyl, C 2-8 alkenyl, C 1-8 alkanoyl, C 1-8 alkylsulphonyl, C 1-8 alkoxycarbonyl, carbamoyl, N—(C 1-8 alkyl)carbamoyl, N,N—(C 1-8 alkyl)carbamoyl, benzyloxycarbonyl, benzoyl, phenylsulphonyl, aryl, arylC 1-6 alkyl or (heterocyclic group)C 1-6 alkyl; wherein K may be optionally substituted on carbon by one or more Q; and wherein if said heterocyclic group contains a —NH— moiety that nitrogen may be optionally substituted by hydrogen or C 1-6 alkyl; Q is halo, nitro, cyano, hydroxy, trifluoromethyl, trifluoromethoxy, amino, carboxy, carbamoyl, mercapto, sulphamoyl, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 alkoxy, C 1-6 alkanoyl, C 1-6 alkanoyloxy, N—(C 1-6 alkyl)amino, N,N—(C 1-6 alkyl) 2 amino, C 1-6 alkanoylamino, N—(C 1-6 alkyl)carbamoyl, N,N—(C 1-6 alkyl) 2 -carbamoyl, C 1-6 alkylS(O) a wherein a is 0 to 2, C 1-6 alkoxycarbonyl, C 1-6 alkoxycarbonylamino, N—(C 1-6 alkyl)sulphamoyl, N,N—(C 1-6 alkyl) 2 sulphamoyl, aryl, aryloxy, aryl C 1-6 alkyl, arylC 1-6 alkoxy, heterocyclic group, (heterocyclic group)C 1-6 alkyl, or (heterocyclic group)C 1-6 alkoxy; R 3 is amino or hydroxy; or a pharmaceutically acceptable salt thereof.