[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. Antiarrhythmic agent pharmacologically similar to lidocaine. It may have some anticonvulsant properties."}, {"from": "gpt", "value": "[C][C][=C][Branch1][#Branch2][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][C][O][C][C][Branch1][C][C][N]"}]