Abstract: Disclosed is a sulfonamide compound having a chemical structure characterized in that the compound has an amide structure wherein a carbon atom in the amide binds to a nitrogen atom in a sulfonamide through a lower alkylene, or a salt of the compound. The compound or the salt has a potent antagonistic activity against an EP 1 receptor and is therefore useful as a therapeutic agent for a disease associated with an EP1 receptor, particularly lower urinary tract symptom.
