[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a natural product found in Alstonia angustifolia with data available."}, {"from": "gpt", "value": "[C][N][C@H1][C][C@@H1][C@H1][Branch2][Ring1][O][C@@H1][Ring1][=Branch1][C][C][=C][Ring1][Branch2][N][Branch1][#C][C][=C][Ring1][Branch1][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][C][C][O][C][Ring2][Ring1][Ring1][=O]"}]