PROBLEM TO BE SOLVED: To provide apoptosis signal-regulating kinase inhibitors.SOLUTION: The invention relates to compounds of Formula (I), and pharmaceutical compositions comprising the compounds [X-Xindependently represent C(R) or N; Ris C1-10 alkyl or the like; Ris H or the like, Ris aryl, heteroaryl, or heterocyclyl; Ris H or the like].EFFECT: The compounds have apoptosis signal-regulating kinase (ASK1) inhibitory activity, and are thus useful in the treatment of ASK1-mediated conditions, including autoimmune disorders, inflammatory diseases, cardiovascular diseases and neurodegenerative diseases.SELECTED DRAWING: None【課題】アポトーシスシグナル調節キナーゼ阻害剤の提供。【解決手段】式(I)の化合物、及び前記化合物を含む医薬組成物。[X1~X8は、各々独立にC(R4)又はN;R1はC1~10のアルキル等;R2はH等、R3は、アリール、ヘテロアリール、又はヘテロシクリル;R4はH等]【効果】前記化合物は、アポトーシスシグナル調節キナーゼ(「ASK1」)阻害活性を有し、自己免疫障害、炎症性疾患、心血管疾患、及び神経変性疾患を含めたASK1が媒介する状態の治療において有用である。【選択図】なし