[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is an organic heteropentacyclic compound that is isolated from Streptomyces sp. A54238. It exhibits inhibitory efficacy against the growth of human tumour cells. It has a role as a metabolite, an antimicrobial agent and an antineoplastic agent. It is an organic heteropentacyclic compound, a member of phenols, a secondary alcohol, a cyclic ether, an organonitrogen heterocyclic compound, an enone, an oxo monocarboxylic acid and an aromatic ketone."}, {"from": "gpt", "value": "[C][C][C][=C][Branch1][=C][C][C][Branch1][Ring2][O][Ring1][=Branch1][C][C][=Branch1][C][=O][O][C][=C][C][=Branch1][P][=C][N][Ring1][Branch1][C][Branch1][Branch1][C][C][Ring1][Branch1][C][Branch1][C][C][O][C][=C][C][=Branch1][C][=O][C][Ring1][#C][=C][Ring2][Ring1][#Branch2][O]"}]