[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][N+1][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C@@H1][Ring1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][Ring2][Ring1][C]"}, {"from": "gpt", "value": "The molecule is a quaternary ammonium ion resulting from the methylation of the nitrogen atom of alpha-berbine. It is functionally related to an alpha-berbine."}]