A compound represented by the general formula, or a salt thereof, has exceptional CXCL10 inhibitory activity and is useful as a treatment agent for the prevention and/or treatment, etc., of diseases involving overproduction of CXCL10. In the formula: R1 is a C1-6 alkyl group, etc.； R2 is a hydrogen atom, etc.； R3 is a halogen atom, etc.； Z1, Z2, and Z3 are CH, etc.； X1 is CONH, etc.； ring A is a phenyl group, etc.； R4 is a halogen atom, etc.； and m is an integer of 0-5.一種下列通式所表示的化合物或其鹽：「式中，R1表示C1-6烷基等；R2表示氫原子等；R3表示鹵素原子等；Z1、Z2及Z3表示CH等；X1表示CONH等；環A表示苯基等；R4表示鹵素原子等；m表示0~5之整數」，其具有優異的CXCL10抑制活性，有用於作為與CXCL10之過度產生有關的疾病之預防及/或治療等之處置劑。
