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