[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a natural product found in Sargassum siliquastrum with data available."}, {"from": "gpt", "value": "[C][C][=C][C][=Branch2][Ring2][#Branch2][=C][C][=C][Ring1][=Branch1][O][C@][Branch1][Branch1][C][C][Ring1][=Branch1][Branch1][C][C][C][C][/C][=C][Branch1][C][\\C][/C][C][C][/C][=Branch1][N][=C][Branch1][#Branch1][\\C][=C][Branch1][C][C][C][/C][=O][/C][O]"}]