[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a synthetic tertiary amine alkaloid with antimuscarinic properties. Homatropine, a competitive inhibitor of acetylcholine at the muscarinic receptor, blocks parasympathetic nerve stimulation."}, {"from": "gpt", "value": "[C][N][C][C][C][C][Ring1][Branch1][C][C][Branch1][Ring2][C][Ring1][#Branch1][O][C][=Branch1][C][=O][C][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][O]"}]