A compound represented by the following formula (I): wherein each symbol in the formula is as described herein or a salt thereof has an NRF2 activating activity, and is expected to be useful as a preventive or therapeutic agent for diseases associated with oxidative stress, in particular, hepatic disease (for example, non-alcoholic steatohepatitis (NASH)), cardiovascular disease (for example, heart failure or pulmonary arterial hypertension), lung disease (for example, chronic obstructive pulmonary disease (COPD)), kidney disease (for example, chronic kidney disease (CKD) or acute kidney injury (AKI)), central nervous system disease (for example, Parkinson's disease), mitochondrial disease (for example, Friedreich motor ataxia, mitochondrial myopathy), inflammatory disease (for example, multiple sclerosis (MS), inflammatory bowel disease (IBD)), sickle cell disease, cancer, or the like.