[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a natural product found in Pterocarpus marsupium, Pseudo-nitzschia multistriata, and other organisms with data available."}, {"from": "gpt", "value": "[C][=C][C][=Branch1][S][=C][C][=C][Ring1][=Branch1][C][C][Branch1][=Branch1][C][=Branch1][C][=O][O][O][O]"}]