The present invention relates to compounds of Formula (I): wherein X1, X2, X3, X4, X5, X6, X7, X8, R1, R2, R3 are as defined above. 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. The invention also relates to pharmaceutical compositions comprising one or more of the compounds of Formula (I), and to methods of preparing the compounds of Formula (I).本發明係有關式(I)化合物:其中X1、X2、X3、X4、X5、X6、X7、X8、R1、R2、R3係如下文定義。化合物具有凋亡信號調節劑激酶(“ASK1”)抑制活性,且因此可用於治療由ASK1介導之病狀,包括自體免疫病症、發炎性疾病、心血管疾病及神經退化疾病。本發明亦有關醫藥組成物,其包含一或多種式(I)化合物,及製備式(I)化合物之方法。