1, 8-Naphthyridine derivatives and their use to treat diabetes and related disorders

A compound of the formula I

• wherein
• R1 is selected from alkyl of 1-8 carbon atoms, alkenyl of 2-8 carbon atoms, alkynyl of 2-8 carbon atoms, and A-R9, or
• R1 is selected from aryl of 6-10 carbon atoms, heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms selected from N, S(═O)0-2 and O, cycloalkyl of 3-8 carbon atoms, cycloalkenyl of 4-8 carbon atoms, 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, wherein said heterocycloalkyl and said heterocycloalkenyl may further be fused with phenyl or a 5-6 membered heteroaryl of 2-5 carbon atoms and 1-3 heteroatoms selected from N, S(═O)0-2 and O, and/or wherein one or more of the carbon atoms in said heterocycloalkyl or heterocycloalkenyl may be oxidized to C(═O), all of which may be substituted with 1-3 of R10;
• R10 is selected from nitro, nitrile, hydroxy, halogen, acyl of 1-6 carbon atoms, alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, haloalkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, haloalkoxy of 1-6 carbon atoms, cycloalkoxy of 3-6 carbon atoms, aryl of 6-10 carbon atoms, heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms selected from N, S(═O)0-2 and O, NR11R12, C(═O)OR11, C(═O)NHR11, NHC(═O)R13, NHS(═O)2R13, S(═O)0-2R13, S(═O)2NHR11, cycloalkyl of 3-6 carbon atoms, cycloalkenyl of 3-6 carbon atoms, 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 0.1-2 heteroatoms selected from N, S(═O)0-2 and O, wherein said heterocycloalkyl and said heterocycloakenyl may further be fused with phenyl or a 5-6 membered heteroaryl of 2-5 carbon atoms and 1-3 heteroatoms selected from N, S(═O)0-2 and O, and/or wherein one or more of the carbon atoms in said heterocycloalkyl or heterocycloalkenyl may be oxidized to C(═O);
• R13 is selected from alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, haloalkyl of 1-6 carbon atoms, cycloalkyl of 3-6 carbon atoms, and cycloalkenyl of 4-6 carbon atoms;
• R11 and R12 are independently selected from hydrogen, alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, haloalkyl of 1-6 carbon atoms, cycloalkyl of 3-6 carbon atoms, and cycloalkenyl of 4-6 carbon atoms;
• A is selected from alkyl of 1-8 carbon atoms, alkenyl of 2-8 carbon atoms, alkynyl of 2-8 carbon atoms, and haloalkyl of 1-8 carbon atoms;
• R9 is selected from hydroxy, alkoxy of 1-6 carbon atoms, cycloalkoxy of 3-6 carbon atoms, O-A-R14, NR11R12;
• or
• R9 is selected from aryl of 6-10 carbon atoms, heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms selected from N, S(═O)0-2 and O, cylcoalkyl of 3-8 carbon atoms, cycloalkenyl of 5-8 carbon atoms, all of which may be substituted with 1-3 of R10, or
• R9 is selected from 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, wherein said heterocycloalkyl and said heterocycloakenyl may further be fused with phenyl or a 5-6 membered heteroaryl of 2-5 carbon atoms and 1-3 heteroatoms selected from N, S(═O)0-2 and O, and/or wherein one or more of the carbon atoms in said heterocycloalkyl or heterocycloalkenyl may be oxidized to C(═O), wherein said heterocycloalkyl or said heterocycloalkenyl may be substituted with 1-3 of R10;
• R14 is selected from cylcoalkyl of 3-8 carbon atoms, cycloalkenyl of 5-8 carbon atoms, 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, all of which may be substituted with 1-3 of R10;
• R2 is selected from NR15R16, S(O)0-2R17, and OR17;
• R15 is selected from hydrogen, alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, cylcoalkyl of 3-8 carbon atoms, cycloalkenyl of 4-8 carbon atoms, 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, A-R9, C(═O)R18, C(═O)NHR18, S(═O)2NHR18;
• R18 is selected from aryl of 6-10 carbon atoms, heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms selected from N, S(═O)0-2 and O, cylcoalkyl of 3-8 carbon atoms, cycloalkenyl of 4-8 carbon atoms, 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, all of which may be substituted with 1-3 of R10, or
• R18 is selected from alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, and alkynyl of 2-6 carbon atoms, all of which may be substituted with 1-3 of halogen or alkoxy of 1-6 carbon atoms, or
• R18 is A-R9;
• R16 is selected from alkyl of 1-8 carbon atoms, alkenyl of 2-8 carbon atoms, alkynyl of 2-8 carbon atoms, and A-R9, or
• R16 is selected from aryl of 6-10 carbon atoms, heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms selected from N, S(═O)0-2 and O, cycloalkyl of 3-8 carbon atoms, cycloalkenyl of 4-8 carbon atoms, 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, all of which may be substituted with 1-3 of R10, or
• R15 and R16 combine, together with the nitrogen atom to which they are attached, to form a heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms selected from N, S(═O)0-2 and O, or a 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, wherein said heterocycloalkyl and said heterocycloakenyl may further be fused with phenyl or a 5-6 membered heteroaryl of 2-5 carbon atoms and 1-3 heteroatoms selected from N, S(═O)0-2 and O, and/or wherein one or more of the carbon atoms in said heterocycloalkyl or heterocycloalkenyl may be oxidized to C(═O), all of which may be substituted with 1-3 of R10;
• R17 is selected from alkyl of 1-8 carbon atoms, alkenyl of 2-8 carbon atoms, and alkynyl of 2-8 carbon atoms, haloalkyl of 1-8 carbon atoms, A-R9, or
• R17 is selected from aryl of 6-10 carbon atoms, heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms selected from N, S(═O)0-2 and O, cylcoalkyl of 3-8 carbon atoms, cycloalkenyl of 4-8 carbon atoms, 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, all of which may be substituted with 1-3 of R10;
• R3 is selected from aryl of 6-10 carbon atoms, heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms selected from N, S(═O)0-2 and O, cylcoalkyl of 3-8 carbon atoms, heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(O)O-2, and O, cycloalkenyl of 4-8 carbon atoms, and heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(O)0-2 and O, all of which may be substituted with 1-3 of R10, or
• R3 is selected from alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, haloalkyl of 1-6 carbon atoms, hydrogen, nitro, halogen, NR19R20, A-OR19, A-NR19R20, and A-R20;
• R19 and R20 are independently selected from hydrogen, alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, haloalkyl of 1-6 carbon atoms, and A-R9, or
• R19 and R20 are independently selected from aryl of 6-10 carbon atoms, heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms selected from N, S(O)0-2 and O, cylcoalkyl of 3-8 carbon atoms, cycloalkenyl of 5-8 carbon atoms, 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(O)0-2 and O, 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(O)0-2 and O, wherein said heterocycloalkyl and said heterocycloakenyl may further be fused with phenyl or a 5-6 membered heteroaryl of 2-5 carbon atoms and 1-3 heteroatoms selected from N, S(═O)0-2 and O, and/or wherein one or more of the carbon atoms in said heterocycloalkyl or heterocycloalkenyl may be oxidized to C(═O), all of which may be substituted with 1-3 of R10;
• R4 is selected from ═O, ═S, and OR21;
• R21 is hydrogen, or
• R21 is selected from alkyl of 1-8 carbon atoms, alkenyl of 2-8 carbon atoms, alkynyl of 2-8 carbon atoms, cycloalkyl of 3-8 carbon atoms, cycloalkenyl of 4-8 carbon atoms, 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, all of which may be substituted with 1-3 of R10;
• R5 and R6 are independently selected from cycloalkyl of 3-8 carbon atoms, cycloalkenyl of 4-8 carbon atoms, aryl of 6-10 carbon atoms, and heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms, all of which may be substituted with 1-3 of R10, or
• R5 and R6 are independently selected from 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, wherein said heterocycloalkyl and said heterocycloakenyl may further be fused with phenyl or a 5-6 membered heteroaryl of 2-5 carbon atoms and 1-3 heteroatoms selected from N, S(═O)0-2 and O, and/or wherein one or more of the carbon atoms in said heterocycloalkyl or heterocycloalkenyl may be oxidized to C(═O), wherein said heterocycloalkyl or said heterocycloalkenyl may be substituted with 1-3 of R10, A-R23, A-NR24R25, C(═O)R24, C(═O)OR24, C(═O)NR24R25, S(═O)2R26, A-C(═O)R24, A-C(═O)OR24, or A-C(═O)NR24R25, or
• R5 and R6 are independently selected from hydrogen, halogen, nitrile, nitro, hydroxy, alkyl of 1-8 carbon atoms, alkenyl of 2-8 carbon atoms, alkynyl of 2-8 carbon atoms, haloalkyl of 1-8 carbon atoms, alkoxy of 1-8 carbon atoms, haloalkoxy of 1-8 carbon atoms, cycloalkoxy of 3-8 carbon atoms, A-R23, A(OR22)—R23, NR27R28, A-NR27R28, A-Q-R29, Q-R29, Q-A-NR24R25, C(═O)R24, C(═O)OR24, C(═O)NR24R25, A-C(═O)R24, A-C(═O)OR24, and A-C(═O)NR24R25;
• Q is selected from O and S(═O)0-2;
• R22 is selected from hydrogen, alkyl of 1-8 carbon atoms, haloalkyl of 1-8 carbon atoms, and cycloalkyl of 3-8 carbon atoms;
• R23 is selected from hydroxy, alkoxy of 1-8 carbon atoms, haloalkoxy of 1-8 carbon atoms, and cycloalkoxy of 3-8 carbon atoms, or R23 is selected from cycloalkyl of 3-8 carbon atoms, cycloalkenyl of 4-8 carbon atoms, aryl of 6-10 carbon atoms, and heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms selected from N, S(═O)0-2, and O, all of which may be substituted with 1-3 of R10, or
• R23 is selected from 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, O, S(═O)0-2, and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, O, S(═O)0-2, wherein said heterocycloalkyl and said heterocycloakenyl may further be fused with phenyl or a 5-6 membered heteroaryl of 2-5 carbon atoms and 1-3 heteroatoms selected from N, S(═O)0-2 and O, and/or wherein one or more of the carbon atoms in said heterocycloalkyl or heterocycloalkenyl may be oxidized to C(═O), wherein said heterocycloalkyl or said heterocycloalkenyl may be substituted with 1-3 of R10;
• with the proviso for A(OR22)—R23 that when R23 is selected from hydroxy, alkoxy of 1-8 carbon atoms, haloalkoxy of 1-8 carbon atoms, and cycloalkoxy of 3-8 carbon atoms, A is not CH;
• R24 and R25 are independently selected from hydrogen, alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, haloalkyl of 1-6 carbon atoms, and A-R23, or
• R24 and R25 are independently selected from cycloalkyl of 3-6 carbon atoms, cycloalkenyl of 3-6 carbon atoms, aryl of 6-10 carbon atoms, and heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms selected from N, S(═O)0-2, and O, all of which may be substituted with 1-3 of R10, or
• R24 and R25 are independently selected from 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, O, S(═O)0-2, and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, O, S(═O)0-2, wherein said heterocycloalkyl and said heterocycloakenyl may further be fused with phenyl or a 5-6 membered heteroaryl of 2-5 carbon atoms and 1-3 heteroatoms selected from N, S(═O)0-2 and O, and/or wherein one or more of the carbon atoms in said heterocycloalkyl or heterocycloalkenyl may be oxidized to C(═O), wherein said heterocycloalkyl or said heterocycloalkenyl may be substituted with 1-3 of R10, or
• R24 and R25 combine, together with the nitrogen atom to which they are attached, to form a 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2, and O, a 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2, and O, or a heteroaryl of 2-9 carbon atoms and 14 heteroatoms, wherein said heterocycloalkyl and said heterocycloakenyl may further be fused with phenyl or a 5-6 membered heteroaryl of 2-5 carbon atoms and 1-3 heteroatoms selected from N, S(═O)0-2 and O, and/or wherein one or more of the carbon atoms in said heterocycloalkyl or heterocycloalkenyl may be oxidized to C(═O), all of which may be substituted with 1-3 of R10;
• R26 is selected from alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, haloalkyl of 1-6 carbon atoms, A(OR22)—R23, and A-R23, or
• R26 is selected from cycloalkyl of 3-6 carbon atoms, cycloalkenyl of 3-6 carbon atoms, aryl of 6-10 carbon atoms, and heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms selected from N, S(═O)0-2, and O, all of which may be substituted with 1-3 of R10, or
• R26 is selected from 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, O, S(═O)0-2, and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, O, S(═O)0-2, wherein said heterocycloalkyl and said heterocycloakenyl may further be fused with phenyl or a 5-6 membered heteroaryl of 2-5 carbon atoms and 1-3 heteroatoms selected from N, S(═O)0-2 and O, and/or wherein one or more of the carbon atoms in said heterocycloalkyl or heterocycloalkenyl may be oxidized to C(═O), wherein said heterocycloalkyl or said heterocycloalkenyl may be substituted with 1-3 of R10;
• R27 is selected from hydrogen, alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, haloalkyl of 1-6 carbon atoms, and A-R23, or
• R27 is selected from cycloalkyl of 3-6 carbon atoms, cycloalkenyl of 3-6 carbon atoms, aryl of 6-10 carbon atoms, and heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms selected from N, S(═O)0-2, and O, all of which may be substituted with 1-3 of R10, or
• R27 is selected from 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, O, S(═O)0-2, and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, O, S(═O)0-2, wherein said heterocycloalkyl and said heterocycloakenyl may further be fused with phenyl or a 5-6 membered heteroaryl of 2-5 carbon atoms and 1-3 heteroatoms selected from N, S(═O)0-2 and O, and/or wherein one or more of the carbon atoms in said heterocycloalkyl or heterocycloalkenyl may be oxidized to C(═O), wherein said heterocycloalkyl or said heterocycloalkenyl may be substituted with 1-3 of R10;
• R28 is selected from hydrogen, alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, haloalkyl of 1-6 carbon atoms, A-R23, C(═O)R24, C(═O)OR26, C(═O)NR25R30, S(═O)2R26, A-C(═O)R24, A-C(═O)OR24, and A-C(═O)NR24R25, or
• R28 is selected from cycloalkyl of 3-6 carbon atoms, cycloalkenyl of 3-6 carbon atoms, aryl of 6-10 carbon atoms, heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms selected from N, S(═O)0-2, and O, all of which may be substituted with 1-3 of R10, or
• R28 is selected from 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, O, S(═O)0-2, and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, O, S(═O)0-2, wherein said heterocycloalkyl and said heterocycloakenyl may further be fused with phenyl or a 5-6 membered heteroaryl of 2-5 carbon atoms and 1-3 heteroatoms selected from N, S(═O)0-2 and O, and/or wherein one or more of the carbon atoms in said heterocycloalkyl or heterocycloalkenyl may be oxidized to C(═O), wherein said heterocycloalkyl or said heterocycloalkenyl may be substituted with 1-3 of R10;
• R30 is selected from alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, haloalkyl of 1-6 carbon atoms, A(OR22)—R23, and A-R23, or
• R30 is selected from cycloalkyl of 3-6 carbon atoms, cycloalkenyl of 3-6 carbon atoms, aryl of 6-10 carbon atoms, and heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms selected from N, S(═O)0-2, and O, all of which may be substituted with 1-3 of R10, or
• R30 is selected from 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, O, S(═O)0-2, and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, O, S(═O)0-2, wherein said heterocycloalkyl and said heterocycloakenyl may further be fused with phenyl or a 5-6 membered heteroaryl of 2-5 carbon atoms and 1-3 heteroatoms selected from N, S(═O)0-2 and O, and/or wherein one or more of the carbon atoms in said heterocycloalkyl or heterocycloalkenyl may be oxidized to C(═O), wherein said heterocycloalkyl or said heterocycloalkenyl may be substituted with 1-3 of R10, or
• R25 and R30 combine, together with the nitrogen atom to which they are attached, to form a 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2, and O, a 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2, and O, or a heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms, all of which may be substituted with 1-3 of R10;
• R29 is selected from alkyl of 1-6 carbon atoms, alkenyl of 2-6 carbon atoms, alkynyl of 2-6 carbon atoms, haloalkyl of 1-6 carbon atoms, A-R23, A-C(═O)R24, A-C(═O)OR24, A-C(═O)NR24R25, A-NR27R28, or
• R29 is selected from cycloalkyl of 3-6 carbon atoms, cycloalkenyl of 3-6 carbon atoms, aryl of 6-10 carbon atoms, heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms selected from N, S(═O)0-2, and O, all of which may be substituted with 1-3 of R10, or
• R29 is selected from 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, O, S(═O)0-2, and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, O, S(═O)0-2, wherein said heterocycloalkyl and said heterocycloakenyl may further be fused with phenyl or a 5-6 membered heteroaryl of 2-5 carbon atoms and 1-3 heteroatoms selected from N, S(═O)0-2 and O, and/or wherein one or more of the carbon atoms in said heterocycloalkyl or heterocycloalkenyl may be oxidized to C(═O), wherein said heterocycloalkyl or said heterocycloalkenyl may be substituted with 1-3 of R10;
• R7 is selected from cycloalkyl of 3-8 carbon atoms, cycloalkenyl of 4-8 carbon atoms, aryl of 6-10 carbon atoms, and heteroaryl of 2-9 carbon atoms and 1-4 heteroatoms, all of which may be substituted with 1-3 of R10, or
• R7 is selected from 5-7 membered heterocycloalkyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O and 5-7 membered heterocycloalkenyl of 3-6 carbon atoms and 1-2 heteroatoms selected from N, S(═O)0-2 and O, wherein said heterocycloalkyl and said heterocycloakenyl may further be fused with phenyl or a 5-6 membered heteroaryl of 2-5 carbon atoms and 1-3 heteroatoms selected from N, S(═O)0-2 and O, and/or wherein one or more of the carbon atoms in said heterocycloalkyl or heterocycloalkenyl may be oxidized to C(═O), wherein said heterocycloalkyl or said heterocycloalkenyl may be substituted with 1-3 of R10, A(OR22)—R23, A-R23, A-NR24R25, C(═O)R24, C(═O)OR24, C(═O)NR24R25, S(═O)2R26, A-C(═O)R24, A-C(═O)OR24, or A-C(═O)NR24R25, or
• R7 is selected from hydrogen, nitrile, nitro, hydroxy, alkyl of 1-8 carbon atoms, alkenyl of 2-8 carbon atoms, alkynyl of 2-8 carbon atoms, haloalkyl of 1-8 carbon atoms, alkoxy of 1-8 carbon atoms, haloalkoxy of 1-8 carbon atoms, cycloalkoxy of 3-8 carbon atoms, A-R23, A(OR22)—R23, NR27R28, A-NR27R28, A-Q-R29, Q-R29, Q-A-NR24R25, C(═O)R24, C(═O)OR24, C(═O)NR24R25, A-C(═O)R24, A-C(═O)OR24, and A-C(═O)NR24R25;
• and pharmaceutically acceptable salts thereof,
• with the provisio that the compound is not:
• 1,5-dimethyl-2-(methylamino)-7-(4-morpholinyl)-1,8-naphthyridin-4(1H)-one,
• 1,5-dimethyl-2-(methylamino)-7-(4-methyl-1-piperazinyl)-1,8-naphthyridin-4(1H)-one,
• 1,5-dimethyl-2-(methylamino)-7-(1-pyrrolidinyl)-1,8-naphthyridin-4(1H)-one,
• 1,5-dimethyl-2-(methylamino)-7-(1-piperidinyl)-1,8-naphthyridin-4(1H)-one,
• 1,5-dimethyl-2-(methylamino)-7-(4-methyl-1-piperazinyl)-3-nitro-1,8-naphthyridin-4(1H)-one,
• 1,5-dimethyl-2-(methylamino)-3-nitro-7-(1-pyrrolidinyl)-1,8-naphthyridin-4(1H)-one, or
• 1-(3-chlorophenyl)-2-(4-morpholinyl)-1,8-naphthyridin-4(1H)-one.