[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is an organonitrogen heterocyclic compound, an organic heterotetracyclic compound and an alkaloid antibiotic."}, {"from": "gpt", "value": "[C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][C][Ring1][#Branch2][=N][Ring1][S]"}]