[{"from": "human", "value": "What can you tell me about this molecule? [C][C][=C][C][=Branch1][=N][=C][Branch1][=Branch2][C][=Branch1][Branch1][=C][Ring1][=Branch1][C][C][C][C][=O]"}, {"from": "gpt", "value": "The molecule is a natural product found in Nicotiana tabacum with data available."}]