Heteroaryl-ureas and their use as glucokinase activators

A compound of formula (I)

• wherein R1 is C3-8-cycloalkyl optionally substituted with one or more substituents R3, R4, R5 and R6;
• R2 is C3-8-cycloalkyl optionally substituted with one or more substituents R30, R31, R32 and R33, and
• R3, R4, R5, R6, R30, R31, R32 and R33 are independently selected from the group consisting of
• halogen, nitro, cyano, hydroxy, oxo, carboxy, —CF3;
• or
• —NR10R11;
• or
• C1-6-alkyl, C2-6-alkenyl, C2-6-alkynyl, C3-8-cycloalkyl, C3-8-cycloalkyl-C1-6-alkyl, aryl, aryl-C1-6-alkyl, heteroaryl-C1-6-alkyl, C1-6-alkoxy, C3-6-cycloalkyl-C1-6-alkoxy, aryl-C1-6-alkoxy, heteroaryl, heteroaryl-C1-6-alkoxy, aryloxy, heteroaryloxy, C1-6-alkylthio, arylthio, heteroarylthio, C3-8-cycloalkylthio, aryl-C1-6-alkylthio, heteroaryl-C1-6-alkylthio, C1-6-alkylsulfenyl, C3-6-cycloalkyl-C1-6-alkylthio, C1-6-alkyl-C(O)—O—C1-6-alkyl, C1-6-alkoxy-C1-6-alkyl, C1-6-alkylthio-C1-6-alkyl, carboxy-C1-6-alkyloxy, amino-C1-6-alkyl, C1-6-alkylamino-C1-6-alkyl, di-(C1-6-alkyl)amino-C1-6-alkyl, C1-6-alkylsulfamoyl, di(C1-6-alkyl)sulfamoyl, C1-6-alkylsulfinamoyl or di(C1-6-alkyl)sulfinamoyl each of which is optionally substituted with one or more substituents independently selected from R12;
• or
• —C(O)—R27, —S(O)2—R27, —C(O)—NR13R14, —S(O)2—NR13R14, —C1-6-alkyl-C(O)—NR13R14;
• or
• two substituents selected from R3, R4, R5 and R6 or R30, R31, R32 and R33 attached to the same or adjacent atoms together form a radical —O—(CH2)1-3—O—;
• R10 and R11 independently represent hydrogen, C1-6-alkyl, —C(O)—C1-6-alkyl, —C(O)—O—C1-6-alkyl, carboxy-C1-6-alkyl, —C(O)—C1-6-alkyl-C(O)OH, —S(O)2—C1-6-alkyl, or aryl;
• R27 is C1-6-alkyl, C1-6-alkoxy, C2-6-alkenyl, C2-6-alkynyl, C3-8-cycloalkyl, C3-8-cycloalkyl-C1-6-alkyl, C3-8-cycloalkyl-C2-6-alkenyl, aryl, aryl-C1-6-alkyl, aryloxy-C1-6-alkyl, aryl-C2-6-alkenyl, heteroaryl, C3-8-heterocyclyl, heteroaryl-C1-6-alkyl, C3-8-heterocyclyl-C1-6-alkyl, heteroaryloxy-C1-6-alkyl, carboxy-C1-6-alkyl, carboxy-C2-6-alkenyl, C1-6-alkoxy-C1-6-alkyl, C1-6-alkoxy-C2-6-alkenyl, C1-6-alkylthio-C1-6-alkyl, R10HN—C1-6-alkyl, R10R11—N—C1-6-alkyl, R10R11—N—C2-6-alkenyl, R10R11—N—S(O)2—C1-6-alkyl, R10R11—N—C(O)—C1-6-alkyl, C1-6-alkyl-C(O)—NH—C1-6-alkyl, aryl-C(O)—NH—C1-6-alkyl, heteroaryl-C(O)—NH—C1-6-alkyl, C3-8-cycloalkyl-C(O)—NH—C1-6-alkyl, C1-6-alkyl-S(O)2—NH—C1-6-alkyl, aryl-S(O)2—NH—C1-6-alkyl, heteroaryl-S(O)2—NH—C1-6-alkyl, or C3-8-cycloalkyl-S(O)2—NH—C1-6-alkyl, each of which is optionally substituted with one or more substituents independently selected from R12;
• R12 is halogen, cyano, hydroxy, —C(O)—O—C1-6-alkyl, carboxy, —CF3, C1-6-alkyl, C1-6-alkoxy, —NR10R11, —S(O)2CH3, or —S(O)2NH2;
• R13 and R14 are independently selected from the group consisting of hydrogen, C1-6-alkyl, hydroxy-C1-6-alkyl, carboxy-C1-6-alkyl, aryl, or heteroaryl, each of which is optionally substituted with one or more substituents independently selected from R15;
• or R13 and R14 together with the nitrogen to which they are attached form a 3 to 8 membered heterocyclic ring with the said nitrogen atom, the heterocyclic ring optionally containing one or two further heteroatoms selected from nitrogen, oxygen and sulphur;
• R15 is halogen, cyano, hydroxy, carboxy, —CF3, C1-6-alkyl, —S(O)2CH3, or —S(O)2NH2;
• A is selected from the group
• and which is optionally substituted with one or more substituents independently selected from R7, R8 ;
• R7 and R8 are independently selected from
• halogen, carboxy, cyano, nitro, hydroxy, —CF3, —SCN;
• or
• C1-6-alkyl, C2-6-alkenyl, C2-6-alkynyl, C1-6-alkoxy, C1-6-alkylthio, C2-6-alkenylthio, C1-6-alkylamino, C1-6-alkylsulfenyl, —C(O)—O—C1-6-alkyl, formyl, —C(O)—C1-6-alkyl, —C1-6-alkyl-C(O)—O—C1-6-alkyl, —C1-6-alkyl-O—C(O)—C1-6-alkyl, —NH—C(O)—C1-6-alkyl, —C1-6-alkoxy-C1-6-alkyl, —C1-6-alkyl-S—C1-6-alkyl, carboxy-C1-6-alkyl, or hydroxy-C1-6-alkyl, each of which is optionally substituted with one or more substituents independently selected from R16;
• or
• aryl, heteroaryl, aryl-C1-6-alkyl, heteroaryl-C1-6-alkyl, aryl-C1-6-alkoxy, heteroaryl-C1-6-alkoxy, aryl-C1-6-alkylthio, heteroaryl-C1-6-alkylthio, heteroaryl-thio-C1-6-alkyl, heteroaryl-oxy-C1-6-alkyl, aryloxy, heteroaryloxy, arylthio, heteroarylthio, aryl-C1-6-alkylamino, —C(O)-aryl, or —C(O)-heteroaryl, each of which is optionally substituted on the aryl or heteroaryl part with one or more substituents independently selected from R17;
• or
• C3-8-cycloalkyl, C3-8-cycloalkenyl, C3-8-cycloalkylthio, C3-8-cycloalkyl-C1-6-alkyl, C3-8-cycloalkenyl-C1-6-alkyl, C3-6-cycloalkyl-C1-6-alkoxy, C3-6-cycloalkyl-C1-6-alkylthio, each of which is optionally substituted on the cycloalkyl part with one or more substituents independently selected from R18;
• or
• C3-8-heterocyclyl, C3-8-heterocyclyl-C1-6-alkyl, C3-8-heterocyclyl-C1-6-alkylthio, C3-8-heterocyclylthio, C3-8-heterocyclyl-amino-C1-6-alkyl, or —C(O)—C3-8-heterocyclyl, each of which is optionally substituted with one or more substituents independently selected from R16;
• or
• —NR19R20, —C1-6-alkyl-NR19R20, —C2-6-alkenyl-NR19R20, —C1-6-alkyl-S—R21, —C1-6-alkyl-S(O)—R21, —C1-6-alkyl-S(O)2—R21, —S(O)2—R21 or —S(O)2—NR19R20, wherein each alkyl part may be substituted with one or more substituents independently selected from R25;
• or
• —C(O)NR22R23, —C1-6-alkyl-C(O)NR22R23—C1-6-alkyl-NH—NR22R23—C1-6-alkyl-NH—C(O)—C1-6-alkyl-NR22R23, each optionally substituted with one or more substituents independently selected from R26;
• or
• R7, and R8 can be taken together to form a C2-5-alkylene bridge;
• the C2-5-alkylene bridge is optionally substituted with one or more substituents independently selected from R16;
• R16, R17, and R18 are independently C1-6-alkyl, halogen, nitro, cyano, hydroxy, carboxy, oxo, —CF3, carboxy-C1-6-alkyl, hydroxy-C1-6-alkyl, —C1-6-alkyl-C(O)—O—C1-6-alkyl, —C1-6-alkyl-C(O)—NR19R20, —C(O)—O—C1-6-alkyl, —C(O)—C1-6-alkyl-C(O)—C1-6-alkyl, —NR19R20, —NHS(O)2C1-6-alkyl, —C(O)NR19R20, —S(O)2C1-6-alkyl, or —S(O)2NR19R20;
• R19 and R20 independently represent hydrogen, C1-6-alkyl, hydroxy-C1-6-alkyl, carboxy-C1-6-alkyl, aryl, heteroaryl, C3-8-heterocyclyl, aryl-C1-6-alkyl, C3-8-heterocyclyl-C1-6-alkyl, —C(O)—O—C1-6-alkyl —C1-6-alkyl-C(O)—O—C1-6-alkyl, —C1-6-alkyl-NR22R23, or —S(O)2—C1-6-alkyl, each of which is optionally substituted with one or more substituents independently selected from R24, or R19 and R20 together with the nitrogen to which they are attached form a 3 to 8 membered heterocyclic ring with the said nitrogen atom, the heterocyclic ring optionally containing one or two further heteroatoms selected from nitrogen, oxygen and sulphur, the heterocyclic ring is optionally substituted with one or more substituents independently selected from R24;
• R21 is selected from
• C1-6-alkyl, C2-6-alkenyl, carboxy-C1-6-alkyl, C1-6-alkylamino-C1-6-alkyl or hydroxy-C1-6-alkyl, —C1-6-alkyl-NR22R23;
• or
• aryl, heteroaryl, aryl-C1-6-alkyl, or heteroaryl-C1-6-alkyl, wherein the aryl or heteroaryl part is optionally substituted with one or more substituents independently selected from R24;
• or
• C3-8-cycloalkyl, C3-8-cycloalkenyl, C3-8-cycloalkyl-C1-6-alkyl, C3-8-cycloalkenyl-C1-6-alkyl;
• R22 and R23 are independently selected from hydrogen, C1-6-alkyl, carboxy-C1-6-alkyl, —C1-6-alkyl-C(O)—O—C1-6-alkyl, —C(O)—O—C1-6-alkyl, —C1-6-alkyl-S(O)2—C1-6-alkyl, C3-8-cycloalkyl, aryl, or heteroaryl;
• or R22 and R23 together with the nitrogen to which they are attached form a 3 to 8 membered heterocyclic ring with the said nitrogen atom, the heterocyclic ring optionally containing one or two further heteroatoms selected from nitrogen, oxygen and sulphur, the heterocyclic ring is optionally substituted with one or more substituents independently selected from R24;
• R24 is halogen, nitro, cyano, hydroxy, carboxy, oxo, —CF3, C1-6-alkyl, hydroxy-C1-6-alkyl, carboxy-C1-6-alkyl, —C(O)—C1-6-alkyl, —C(O)—C3-8-cycloalkyl, —C(O)-aryl, —C(O)-heteroaryl, —C(O)—C3-8-heterocyclyl —C(O)—O—C1-6-alkyl, —C1-6-alkyl-C(O)—O—C1-6-alkyl, aryl, heteroaryl, aryl-C1-6-alkyl, heteroaryl-C1-6-alkyl, C3-8-cycloalkyl, C3-8-heterocyclyl, C3-8-cycloalkyl-C1-6-alkyl, C3-8-heterocyclyl-C1-6-alkyl, —C1-6-alkyl-C(O)—C3-8-heterocyclyl, —C(O)—O—C1-6-alkyl-aryl, —NH—S(O)2R28, or —S(O)2R28, wherein each cyclic moiety is optionally substituted with one or more substituents independently selected from R29;
• R25 and R26 are independently C1-6-alkyl, halogen, nitro, cyano, hydroxy, —C(O)—O—C1-6-alkyl, carboxy, —C1-6-alkyl-C(O)—O—C1-6-alkyl, carboxy-C1-6-alkyl, —CF3, —S(O)2CH3, or —S(O)2NH2;
• R28 is C1-6-alkyl, carboxy-C1-6-alkyl, —C1-6-alkyl-C(O)—O—C1-6-alkyl, C3-8-cycloalkyl, aryl, aryl-C1-6-alkyl, heteroaryl optionally substituted with C1-6-alkyl, —NH2, or —N(CH3)2;
• R29 is halogen, nitro, cyano, hydroxy, carboxy, oxo, —CF3, C1-6-alkyl, or C1-6-alkoxy;
• as well as any salt hereof with a pharmaceutically acceptable acid or base, or any optical isomer or mixture of optical isomers, racemic mixture, or tautomeric form thereof.