Heterocyclic ring and carbocyclic derivative

Provided is a novel compound having P2X 3 and/or P2X 2/3 receptor antagonist activity, for example, a compound represented by formula (I) or a pharmaceutically acceptable salt thereof. (In formula (I), R 2 represents a hydrogen atom or the like; ring A represents a five- to seven-membered cycloalkane or the like; C represent a carbon atom; each of Q 1 and Q 2 represents a carbon atom or the like; each of R 9a and R 9b represents a hydrogen atom or the like; R 6 represents a cycloalkyl or the like; R 16 represents a hydrogen atom or the like; and R 7 represents a group represented by formula (AA) (wherein ring D represents a benzene or the like; carbon atoms a and b represent carbon atoms; ring B represents an aromatic carbocyclic ring or the like; each of s and s' represents 0 or the like; and each of R 9 and R 9' represents a halogen or the like) or the like.)