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