[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an oral acetylcholinesterase inhibitor previously used for therapy of Alzheimer disease. Tacrine therapy is associated with a very high rate of serum aminotransferase elevations during therapy and has been linked to several instances of clinically apparent, acute liver injury."}, {"from": "gpt", "value": "[C][C][C][C][=N][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][#Branch1][=C][Ring1][#Branch2][C][Ring1][=C][N]"}]