[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a natural product found in Strongylocentrotus purpuratus with data available."}, {"from": "gpt", "value": "[C][N][C][=N][C][=Branch2][Ring1][C][=C][Ring1][Branch1][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH1+1][Branch1][C][C][C][S]"}]