[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a natural product found in Sargassum spinuligerum, Himanthalia elongata, and other organisms with data available."}, {"from": "gpt", "value": "[C][=C][Branch2][Ring2][=N][C][=C][Branch1][=Branch1][C][=C][Ring1][=Branch1][O][O][C][=C][Branch2][Ring1][=N][C][=C][Branch2][Ring1][#Branch1][C][=Branch1][Branch1][=C][Ring1][=Branch1][O][C][=C][Branch1][O][C][=C][Branch1][=Branch1][C][=C][Ring1][=Branch1][O][O][O][O][O][O]"}]