[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a natural product found in Laurencia obtusa, Laurencia saitoi, and Laurencia dendroidea with data available."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][O][C@@H1][C][C@H1][C@@][Branch2][Ring1][=Branch1][C][C@H1][Branch1][N][C@H1][C@@][Ring1][=Branch1][Branch1][Ring2][C][Ring1][Ring1][C][O][O][C][=Branch1][C][=O][C][Branch2][Ring1][#Branch1][C][=C][C][C@][Branch1][Branch2][C][C@@H1][Ring2][Ring1][Branch1][Ring1][=Branch1][Branch1][C][C][C@H1][Branch1][Ring1][C][O][Br][C]"}]