[{"from": "human", "value": "Could you provide a description of 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 yhat has S configuration. In contrast to the (R)- enantiomer, esoxybutynin exhibits essentially no anticholinergic activity. It has a role as a muscarinic antagonist, a local anaesthetic and a calcium channel blocker. It is an enantiomer of a (R)-oxybutynin."}]