[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is an alkaloid and an organic heterotetracyclic compound."}, {"from": "gpt", "value": "[C][O][C][=C][C][=N][C][=C][C][=C][Ring1][=Branch1][N][Branch1][Branch1][C][Ring1][#Branch2][=O][C][=C][C][=C][C][=C][Ring1][O][Ring1][=Branch1]"}]