A compound of formula or a tautomer thereof, or a pharmaceutically acceptable salt or solvate of said compound or said tautomer, wherein: one of X and Y is C and the other is N; R 1 is selected from H, F, Cl and CF 3; one of R 2 and R 3 is selected from (C 3 -C 6)alkyl, (C 3 -C 6)cycloalkyl, adamantyl, and phenyl substituted with -CN, and optionally further substituted with one or two groups independently selected from -F, -Cl, -CF 3 and -CN; and the other one of R 2 and R 3 is selected from H and F; R 4 is selected from H, F, Cl and CF 3 R 5 is selected from (C 1 - C 6)alkyl, (C 1 - C 6)alkyl substituted with a group selected from - CONH 2, - CONH-(C 1 -C 3)alkyl, - CON((C 1 -C 3)alkyl) 2 wherein the (C 1 -C 3)alkyl groups may be the same or different, - OH, - O(C 1 -C 3)alkyl, and - OCONH 2, (C 3 -C 6)cycloalkyl, and phenyl, R 6 is selected from H and (C 1 -C 3)alkyl, or R 5 and R 6 together with the carbon atom to which they are attached may form a 3- to 6-membered cycloalkyl moiety which may optionally be benzo-fused; R 7 is H or methyl, or, when R 5 and R 6 do not form a cycloalkyl or benzo-fused cycloalkyl moiety, R 5 and R 7 together with the carbon and nitrogen atoms to which they are attached may form 4- to 6-membered monocyclic or 6- to 8-membered bicyclic saturated nitrogen heterocycle which may optionally be substituted with 1 or 2 groups selected from -(C 1 -C 3)alkyl, -OH, and - F. one of X and Y is C and the other is N; R 1 is selected from H, F, Cl and CF 3; H, F, Cl and CF 3; one of R 2 and R 3 is selected from (C 3 -C 6)alkyl, (C 3 -C 6)cycloalkyl, adamantyl, and phenyl substituted with -CN, and optionally further substituted with one or two groups independently selected from -F, -Cl, -CF 3 and -CN; (C 3 -C 6)alkyl, (C 3 -C 6)cycloalkyl, adamantyl, and phenyl substituted with -CN, and optionally further substituted with one or two groups independently selected from -F, -Cl, -CF 3 and -CN; and the other one of R 2 and R 3 is selected from H and F; H and F; R 4 is selected from H, F, Cl and CF 3 H, F, Cl and CF 3 R 5 is selected from (C 1 - C 6)alkyl, (C 1 - C 6)alkyl substituted with a group selected from - CONH 2, - CONH-(C 1 -C 3)alkyl, - CON((C 1 -C 3)alkyl) 2 wherein the (C 1 -C 3)alkyl groups may be the same or different, - OH, - O(C 1 -C 3)alkyl, and - OCONH 2, (C 3 -C 6)cycloalkyl, and phenyl, (C 1 - C 6)alkyl, (C 1 - C 6)alkyl substituted with a group selected from - CONH 2, - CONH-(C 1 -C 3)alkyl, - CON((C 1 -C 3)alkyl) 2 wherein the (C 1 -C 3)alkyl groups may be the same or different, - OH, - O(C 1 -C 3)alkyl, and - OCONH 2, - CONH 2, - CONH-(C 1 -C 3)alkyl, - CON((C 1 -C 3)alkyl) 2 wherein the (C 1 -C 3)alkyl groups may be the same or different, - OH, - O(C 1 -C 3)alkyl, and - OCONH 2, (C 3 -C 6)cycloalkyl, and phenyl, R 6 is selected from H and (C 1 -C 3)alkyl, H and (C 1 -C 3)alkyl, or R 5 and R 6 together with the carbon atom to which they are attached may form a 3- to 6-membered cycloalkyl moiety which may optionally be benzo-fused; R 7 is H or methyl, or, when R 5 and R 6 do not form a cycloalkyl or benzo-fused cycloalkyl moiety, R 5 and R 7 together with the carbon and nitrogen atoms to which they are attached may form 4- to 6-membered monocyclic or 6- to 8-membered bicyclic saturated nitrogen heterocycle which may optionally be substituted with 1 or 2 groups selected from -(C 1 -C 3)alkyl, -OH, and - F.