[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a natural product found in Heterostemma brownii with data available."}, {"from": "gpt", "value": "[C][N][C][N][Branch2][Ring1][Branch1][C][=C][Ring1][Branch1][C][=Branch1][C][=O][N][C][=Branch1][Ring2][=N][Ring1][#Branch1][N][Branch1][C][C][C][C]"}]