[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a natural product found in Sargassum lacerifolium with data available."}, {"from": "gpt", "value": "[C][O][C@H1][C@@H1][Branch2][Ring1][Ring2][C@@H1][Branch1][S][C@H1][Branch1][Ring2][O][Ring1][Branch1][C][As][=Branch1][C][=O][Branch1][C][C][C][O][O]"}]