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