[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a natural product found in Buccinum striatissimum, Lucensosergia lucens, and Sergia lucens with data available."}, {"from": "gpt", "value": "[N][=Branch1][C][=O][N+1][=Branch1][C][=O][O-1]"}]