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