[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a natural product found in Alstonia yunnanensis with data available."}, {"from": "gpt", "value": "[C][C][=C][C][N][C][C][C][Ring1][=Branch1][C][Branch2][Ring1][=Branch2][C][C][Ring1][=Branch1][Branch1][N][N][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][=Branch2][O][C][Ring1][S][C][Ring1][N][C][=Branch1][C][=O][O][C]"}]