[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][N+1][Branch2][Ring2][Branch1][C][C][C][Ring1][=Branch1][C@H1][Branch1][Ring2][C][Ring1][=Branch1][O][C][=Branch1][C][=O][C][Branch1][Branch2][C][=C][C][=C][S][Ring1][Branch1][Branch1][Branch2][C][=C][C][=C][S][Ring1][Branch1][O][C][C][C][O][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a carboxylic ester obtained by formal condensation between the carboxy group of 2-hydroxy(di-2-thienyl)acetic acid and the hydroxy group of N-(3-phenoxypropyl)-3-quinuclidinol. Used as its bromide salt for the long-term maintenance treatment of bronchospasm associated with chronic obstructive pulmonary disease (COPD). It has a role as a bronchodilator agent and a muscarinic antagonist. It is a quaternary ammonium ion, a carboxylic ester, a member of thiophenes and an aromatic ether. It is functionally related to a 3-quinuclidinol."}]