[{"from": "human", "value": "Describe this molecule. [C][C][N][Branch1][Ring1][C][C][C][C][#C][C][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 4-(diethylamino)but-2-yn-1-ol that has R configuration. It is responsible for virtually all of the antimuscarinic activity of (racemic) oxybutynin. It has a role as a cholinergic antagonist, a calcium channel blocker and a local anaesthetic. It is an enantiomer of an esoxybutynin."}]