Patent ID: 8080666

Claim:
A compound of the formula (II): or salts or tautomers or N-oxides thereof; wherein Y is a bond or an alkylene chain of 1, 2 or 3 carbon atoms in length; R 1 is a carbocyclic or heterocyclic group having from 3 to 12 ring members wherein the carbocyclic or heterocyclic group is unsubstituted or substituted by one or more substituent groups R 10 ; or a C 1-8 hydrocarbyl group optionally substituted by one or more substituents selected from fluorine, hydroxy, C 1-4 hydrocarbyloxy, amino, mono- or di-C 1-4 hydrocarbylamino, and carbocyclic or heterocyclic groups having from 3 to 12 ring members wherein the carbocyclic or heterocyclic group is unsubstituted or substituted by one or more substituent groups R 10 , and wherein 1 or 2 of the carbon atoms of the hydrocarbyl group may optionally be replaced by an atom or group selected from O, S, NH, SO, SO 2 ; R 2 is hydrogen; halogen; C 1-4 alkoxy; or a C 1-4 hydrocarbyl group optionally substituted by halogen or C 1-4 alkoxy; R 3 is selected from non-aromatic carbocyclic and-heterocyclic groups having from 3 to 12 ring members wherein the carbocyclic or heterocyclic group is unsubstituted or substituted by one or more substituent groups R 10 ; and R 10 is selected from halogen, hydroxy, trifluoromethyl, cyano, nitro, carboxy, amino, mono- or di-C 1-4 hydrocarbylamino, carbocyclic and heterocyclic groups having from 3 to 12 ring members; a group R a —R b wherein R a is a bond, O, CO, X 1 C(X 2 ), C(X 2 )X 1 , X 1 C(X 2 )X 1 , S, SO, SO 2 , NR c , SO 2 NR c or NR c SO 2 ; and R b is selected from hydrogen, carbocyclic and heterocyclic groups having from 3 to 12 ring members, and a C 1-8 hydrocarbyl group optionally substituted by one or more substituents selected from hydroxy, oxo, halogen, cyano, nitro, carboxy, amino, mono- or di-C 1-4 hydrocarbylamino, carbocyclic and heterocyclic groups having from 3 to 12 ring members and wherein one or more carbon atoms of the C 1-8 hydrocarbyl group may optionally be replaced by O, S, SO, SO 2 , NR c ; X 1 C(X 2 ), C(X 2 )X 1 or X 1 C(X 2 )X 1 ; R c is selected from hydrogen and C 1-4 hydrocarbyl; and X 1 is O, S or NR c and X 2 is ═O, ═S or ═NR c ; and provided that where the substituent group R 10 comprises or includes a carbocyclic or heterocyclic group, the said carbocyclic or heterocyclic group may be unsubstituted or may itself be substituted with one or more further substituent groups R 10 and wherein (a) such further substituent groups R 10 include carbocyclic or heterocyclic groups, which are not themselves further substituted; or (b) the said further substituents do not include carbocyclic or heterocyclic groups but are otherwise selected from the groups listed above in the definition of R 10 .