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