[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][C][Branch1][Ring2][C][Ring1][Branch1][C][Branch1][#C][C][O][C][C][N][C][C][C][Ring1][=Branch1][C][C][Ring1][=Branch1][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][O]"}, {"from": "gpt", "value": "The molecule is under investigation in clinical trial NCT02644876 (Preventive Effects of Penehyclidine Hydrochloride Inhalation on Postoperative Pulmonary Complications)."}]