INHIBITOR COMPOUNDS

摘要

The present invention relates to compounds of formula I;;wherein R1, R4, Ar, W, X and Z are all as defined herein. The compounds of the present invention are known to inhibit the spindle checkpoint function of Monospindle 1 (Mps1—also known as TTK) kinases either directly or indirectly via interaction with the Mps1 kinase itself. In particular, the present invention relates to the use of these compounds as therapeutic agents for the treatment and/or prevention of proliferative diseases, such as cancer. The present invention also relates to processes for the preparation of these compounds, and to pharmaceutical compositions comprising them.

主权项

1. A compound of formula I shown below: wherein: W is N or C—R3; X is CH or N; Z is N or C—H; R1 is chloro, (1-6C)alkyl, (1-8C)heteroalkyl, aryl, aryl(1-2C)alkyl, heteroaryl, heteroaryl(1-2C)alkyl, heterocyclyl, heterocyclyl(1-2C)alkyl, (3-8C)cycloalkyl, (3-8C)cycloalkyl(1-2C)alkyl, NR7R8, OR9, C(O)R9, C(O)OR9, OC(O)R9, N(R10)OR9, N(R10)C(O)OR9, C(O)N(R10)R9, N(R10)C(O)R9, S(O)pR9 (where p is 0, 1 or 2), SO2N(R10)R9, N(R10)SO2R9, N(R10)SOR9 or SON(R10)R9;
and wherein R1 is optionally substituted by one or more substituent groups selected from fluoro, chloro, trifluoromethyl, trifluoromethoxy, cyano, nitro, hydroxy, amino, carboxy, carbamoyl, sulphamoyl, (1-4C)alkyl, (1-4C)alkoxy, S(O)qCH3 (where q is 0, 1 or 2), methylamino, dimethylamino, aryl, aryl(1-2C)alkyl, heteroaryl, heteroaryl(1-2C)alkyl, heterocyclyl, heterocyclyl(1-2C)alkyl, (3-8C)cycloalkyl, and (3-8C)cycloalkyl(1-2C)alkyl,and wherein any (1-4C)alkyl, (1-4C)alkoxy, aryl, heteroaryl, heterocyclyl, or (3-8C)cycloalkyl moiety present within a substituent group on R1 is optionally further substituted by fluoro, chloro, trifluoromethyl, trifluoromethoxy, cyano, nitro, hydroxy, amino, carboxy, carbamoyl, sulphamoyl, (1-4C)alkyl, NRaRb, ORa, C(O)Ra, C(O)ORa, OC(O)Ra, N(Rb)ORa, C(O)N(Rb)Ra, N(Rb)C(O)Ra, S(O)pRa (where p is 0, 1 or 2), SO2N(Rb)Ra, or N(Rb)SO2Ra, wherein Ra and Rb are each independently H or (1-4C)alkyl; R3 is hydrogen, (1-4C)alkyl, (3-6C)cycloalkyl, halo, CF3, CN or (1-4C)alkoxy; R4 is hydrogen, (1-3C)alkyl, (1-3C)alkoxy, fluoro, chloro or CF3; Ar has the formula: wherein: (i) all of A1, A2 and A3 are CH; (ii) one of A1, A2 and A3 is N and the others are CH; or (iii) two of A1, A2 and A3 are N and the other is CH; R5 is hydrogen, cyano, (1-3C)alkyl, (1-3C)fluoroalkyl, (1-3C)alkoxy, (1-3C)fluoroalkoxy, halo, (1-3C)alkanoyl, C(O)NR15R16 or S(O)2NR15R16, and wherein R15 and R16 are each independently H or (1-3C)alkyl, and wherein any alkyl or alkoxy moieties present within a R5 substituent group are optionally further substituted by hydroxy or methoxy; R6 is halo, trifluoromethyl, trifluoromethoxy, cyano, nitro, hydroxy, amino, carboxy, carbamoyl, sulphamoyl, ureido, (1-6C)alkyl, (2-6C)alkenyl, (2-6C)alkynyl, or a group of the formula:
-L1-L2-R17 whereinL1 is absent or a linker group of the formula —[CR18R19]n— in which n is an integer selected from 1, 2, 3 or 4, and R18 and R19 are each independently hydrogen or (1-2C)alkyl;L2 is absent or is O, S, SO, SO2, N(R20), C(O), C(O)O, OC(O), CH(OR20), C(O)N(R20), N(R20)C(O), N(R20)C(O)N(R21), S(O)2N(R20), or N(R21)SO2, wherein R20 and R21 are each independently hydrogen or (1-2C)alkyl; andR17 is (1-6C)alkyl, aryl, aryl-(1-6C)alkyl, (3-6C)cycloalkyl, (3-6C)cycloalkyl-(1-4C)alkyl, heteroaryl, heteroaryl-(1-4C)alkyl, heterocyclyl, heterocyclyl-(1-4C)alkyl,and wherein R17 is optionally further substituted by one or more substituent groups independently selected from oxo, halo, cyano, nitro, hydroxy, NR22R23, (1-4C)alkoxy, (1-4C)alkyl, (3-8C)cycloalkyl, (3-8C)cycloalkyl-(1-3C)alkyl, (1-5C)alkanoyl, (1-5C)alkylsulphonyl, heterocyclyl, heterocyclyl-(1-2C)alkyl, heteroaryl, heteroaryl-(1-2C)alkyl, CONR22R23, and SO2NR22R23; wherein R22 and R23 are each independently hydrogen, (1-4C)alkyl, (3-6C)cycloalkyl or (3-6C)cycloalkyl(1-2C)alkyl;and wherein when said substituent group comprises an alkyl, cycloalkyl, heterocyclyl or heteroaryl moiety then said moiety is optionally further substituted by hydroxy, fluoro, chloro, cyano, CF3, OCF3, (1-2C)alkyl, (1-2C)alkoxy, SO2(1-2C)alkyl or NReRf (where Re and Rf are each independently hydrogen, (1-3C)alkyl, (3-6C)cycloalkyl, or (3-6C)cycloalkyl(1-2C)alkyl);or R17 is a group having the formula:
-L3-L4-R24 L3 is absent or a linker group of the formula —[CR25R26]n— in which n is an integer selected from 1, 2, 3 and 4, and R25 and R26 are each independently hydrogen or (1-2C)alkyl;L4 is absent or is O, S, SO, SO2, N(R27), C(O), C(O)O, OC(O), CH(OR27), C(O)N(R27), N(R27)C(O), N(R27)C(O)N(R28), S(O)2N(R27), or N(R28)SO2, wherein R27 and R28 are each independently hydrogen or (1-2C)alkyl; andR24 is (1-6C)alkyl, aryl, aryl-(1-6C)alkyl, (3-6C)cycloalkyl, (3-6C)cycloalkyl-(1-4C)alkyl, heteroaryl, heteroaryl-(1-4C)alkyl, heterocyclyl, or heterocyclyl-(1-4C)alkyl; R8 and R9 are each independently hydrogen, (1-6C)alkyl, (1-6C)alkoxy, (3-9C)cycloalkyl, (3-9C)cycloalkyl-(1-2C)alkyl, aryl, aryl-(1-2C)alkyl, heterocyclyl, heterocyclyl-(1-2C)alkyl, heteroaryl, or heteroaryl-(1-2C)alkyl, and wherein R8 and R9 are optionally further substituted by one or more substituents selected from hydroxy, fluoro, chloro, cyano, CF3, OCF3 (1-2C)alkyl and (1-2C)alkoxy; R7 and R10 are independently hydrogen, (1-6C)alkyl, (3-6C)cycloalkyl, or (3-6C)cycloalkyl-(1-2C)alkyl, and wherein R7 and R10 are optionally further substituted by one or more substituents selected from hydroxy, fluoro, chloro, cyano, CF3, OCF3, (1-2C)alkyl and (1-2C)alkoxy; subject to the proviso that:
X is only N when Z is N;W is only N when X and Z are both N; andR6 is not methoxy when R1 is S(O)2R9 and R9 is heterocyclyl; or a pharmaceutically acceptable salt or solvate thereof.