- PIPERIDINE DERIVATIVES AS CXCR3 RECEPTOR ANTAGONISTS
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The present invention relates to a compound of formula (I), aN-oxide thereof, a pharmaceutically acceptable salt thereof, a stereochemically isomeric form thereof or a solvate thereof, wherein X represents N or CH; Y and Z each independently represent C(=O) or CH2 provided that at least one of Y and Z represents C(=O); R1 represents CH(R4)-aryl or CH(R4)-heteroaryl; R2 represents aryl2 or heteroaryl; R3 represents hydrogen; C1-4alkylcarbonyl; C1-6alkyl optionally substituted with C1-6alkyloxy, C1-6alkylthio, C1-6alkyloxycarbonyl or aryl1 ; provided that when Y and Z each represent C(=O), X represents CH, R3 represents hydrogen, R4 represents hydrogen, and R2 represents unsubstituted pyridyl or phenyl optionally substituted with one halo or with one C1-4alkyloxy or with one or two C1-4alkyl, then aryl in the definition of R1 is other than phenyl substituted with one halo or with one or two C1-4alkyl; and provided that when Y and Z each represent C(=O), X represents CH, R3 represents hydrogen, and R2 represents unsubstituted pyridyl or phenyl optionally substituted with one halo or with one C1-4alkyloxy or with one or two C1-4alkyl, then heteroaryl in the definit ion of R1 is other than unsubstituted thienyl or unsubstituted pyridyl. The present invention also relates to the use of a compound of formula (I) for the manufacture of a medicament for preventing or treating a disease mediated through activation of the CXCR3 receptor; to processes for preparing the compounds of formula (I) and pharmaceutical compositions comprising them.
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