[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a natural product found in Senecio scandens and Jacobaea vulgaris with data available."}, {"from": "gpt", "value": "[C][C][C][C][Branch1][Branch2][C][Branch1][Ring2][O][Ring1][Ring1][C][C][=Branch1][C][=O][O][C][C][C][N][C][Ring1][Branch1][C][=Branch1][Branch1][=C][C][Ring1][Branch1][C][O][C][=Branch1][C][=O][C][Ring2][Ring1][=Branch1][Branch1][C][C][O]"}]