[{"from": "human", "value": "Describe this molecule. [C][N][C][C][C@H1][Branch1][Ring2][C][Ring1][Branch1][C@@H1][C][C][C][N][Ring1][Branch1][C]"}, {"from": "gpt", "value": "The molecule is a natural product found in Nicotiana tabacum with data available."}]