The present invention provides a compound represented by the general formula (I) of the present invention, which has EP1 receptor antagonism:wherein A represents a benzene ring, a pyridine ring, or the like； Y1 represents a C1-6 alkylene group or the like； Y2 represents a single bond or the like； Z represents —C(═O)—NHSO2R6, an acidic 5-membered hetero ring group, or the like； R1 represents a hydrogen atom or the like； R2 represents a phenyl group, a 5-membered aromatic heterocyclic group, or the like； R3 represents a halogen atom, a C1-6 alkoxy group, or the like； R4 represents a hydrogen atom, a halogen atom, or the like； R5 represents a hydrogen atom or the like； and R6 represents a C1-6 alkyl group or the like], or a pharmaceutically acceptable salt thereof. Furthermore, the compound (I) of the present invention can be used as an agent for treating or preventing LUTS, in particular, various symptoms of OABs.
