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