[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a natural product found in Petrosaspongia nigra with data available."}, {"from": "gpt", "value": "[C][C@][C][C][C][C][Branch2][Ring2][Ring1][C@@H1][Ring1][=Branch1][C][C][C@@][Branch2][Ring1][=Branch2][C@@H1][Ring1][#Branch2][C][C][C][=C][Ring1][=Branch1][C][=C][Branch1][Branch1][N][=C][Ring1][=Branch1][C][C][C][=Branch1][C][=O][O][C][Branch1][C][C][C]"}]