NOUVEAU DÉRIVÉ D'INDAZOLE OU SEL DE CE DERNIER, INTERMÉDIAIRE POUR SA PRÉPARATION, ANTIOXYDANT L'UTILISANT, ET UTILISATION D'UN DÉRIVÉ D'INDAZOLE OU D'UN SEL DE CE DERNIER
A compound represented by formula (1) or salt thereof and a production intermediate thereof are created. The compound exhibited an excellent antioxidation action in a microsome lipid peroxidation measuring system using a rat liver microsome. Therefore, the compound or salt thereof is useful as an antioxidant. The present invention also provides use of a compound represented by the formula (1) or a pharmaceutically acceptable salt thereof for production of an antioxidant.