[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][N][C][Ring1][#Branch2][=C][C][=Branch1][Ring2][=C][Ring1][Branch1][C][=Branch1][C][=O][C][=C][Branch1][Branch1][C][Ring1][Branch2][=O][C][=C][C][=C][Ring1][Branch2][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a water-soluble pentacyclic pyrolloquinone analogue of mitoquidone with potential antineoplastic activity. Currently, the mechanism of action of fosquidone is unknown. In vitro studies indicate that this agent does not bind to DNA or inhibit topoisomerases."}]