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