Tricyclic compound and use thereof

摘要

The present invention relates to the compound represented by formula (I): (wherein, all the symbols has the same meanings as that of the specification), a salt thereof, a solvate thereof or a prodrug thereof. Since the compound of the present invention has an anti stress action, it is useful for preventive and/or therapeutic agent for a disease caused by stress, especially a digestive system disease caused by stress and is superior to oral absorption.