[{"from": "human", "value": "Provide a description of this molecule. [C][N+1][Branch2][Ring2][Ring1][C][C][C@H1][Branch1][Ring2][C][Ring1][Branch1][O][C][=Branch1][C][=O][C@][Branch1][Branch2][C][C][C][C][C][Ring1][Branch1][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C].[Br-1]"}, {"from": "gpt", "value": "The molecule is a glycopyrronium bromide that has (2S,3R)-configuration. The racemate, ritropirronium bromide, is used for treatment of chronic obstructive pulmonary disease. It is an enantiomer of a (2R,3S)-glycopyrronium bromide."}]