Patent ID: 8404684

Claim:
A compound of formula I in free or salt form, wherein R 1 is —CO—NR x R y , where R x and R y together with the nitrogen to which they are attached form a substituted or unsubstituted 5- to 12-membered N-heterocyclic ring optionally including one or more ring hetero atoms selected from the group consisting of oxygen, nitrogen and sulphur; wherein the optional substituent is selected from hydroxy, —SO 2 —CH 3 or aminocarbonyl; R 2 is C 1 -C 3 -alkyl; Y is nitrogen; and R 3 and R 4 are each independently hydrogen, halo, hydroxy, cyano, amino, carboxy, C 1 -C 8 -alkylsulfanyl, C 1 -C 8 -alkylsulfinyl, C 1 -C 8 -alkylsulfonyl, —SO 2 NH 2 , C 1 -C 8 -alkyl, C 1 -C 8 -haloalkyl, amino-C 1 -C 8 -alkyl, amino-C 1 -C 8 -alkoxy, C 1 -C 8 -alkylaminocarbonyl, di(C 1 -C 8 -alkyl)aminocarbonyl, di(C 1 -C 8 -alkyl)amino-C 1 -C 8 -alkyl, di(C 1 -C 8 -alkyl)amino-C 1 -C 8 -alkoxy, C 1 -C 8 -acylamino, aminocarbonyl, C 1 -C 8 -alkoxycarbonyl, carboxy-C 1 -C 8 -alkyl, carboxy-C 1 -C 8 -alkoxy, a C 3 -C 15 -carbocycle, a 5- or 6-membered heterocyclic ring having one or more ring hetero atoms selected from the group consisting of oxygen, nitrogen and sulphur, C 1 -C 8 -alkylamino or di(C 1 -C 8 -alkyl)amino each being optionally substituted by amino, hydroxy, di(C 1 -C 8 -alkyl)amino or a 5- or 6-membered heterocyclic ring having one or more ring hetero atoms selected from the group consisting of oxygen, nitrogen and sulphur, or C 1 -C 8 -alkoxy optionally substituted by a 5- or 6-membered heterocyclic ring having one or more ring hetero atoms selected from the group consisting of oxygen, nitrogen and sulphur.