Provided are a compound having an excellent hypoglycemicaction, or a pharmaceutically acceptable salt thereof, and apharmaceutical composition having an excellent therapeuticeffect and/or prophylactic effect on type 1 diabetes, type 2diabetes, and the like, which cause an increase in the bloodsugar level due to abnormal sugar metabolism. A compoundrepresented by general formula (I), or a pharmaceuticallyacceptable salt thereof, is disclosed.