[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][C][N+1][Branch1][Ring2][C][Ring1][Branch1][C@@H1][C][C][C@H1][Ring1][=Branch1][C][C][Branch1][Ring2][C][Ring1][#Branch1][O][C][=Branch1][C][=O][C][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][O]"}, {"from": "gpt", "value": "The molecule is a carboxylic ester resulting from the formal condensation of the carboxy group of hydroxy(diphenyl)acetic acid with the hydroxy group of (1S,3R,5R)-3-hydroxy-8lambda(5)-azaspiro[bicyclo[3.2.1]octane-8,1'-pyrrolidin]-8-ylium. Its chloride salt is used to treat overactive bladder. It has a role as a muscarinic antagonist and an antispasmodic drug. It is a carboxylic ester, an azabicycloalkane, a tertiary alcohol and a quaternary ammonium ion."}]