[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C@H1][C@@H1][C@H1][Branch1][P][C@@H1][Ring1][=Branch1][C@@H1][C@H1][Ring1][=Branch1][C][=Branch1][C][=O][N][C][Ring1][=Branch1][=O][C@@H1][C@H1][Ring1][N][C][=Branch1][C][=O][N][C][Ring1][=Branch1][=O]"}, {"from": "gpt", "value": "The molecule is a bisdioxopiperazines analog with antineoplastic activity.  Mitinomide inhibits topoisomerase II and slowly promotes DNA-interstrand cross-linking, thereby inhibiting DNA repair, RNA and protein synthesis.  This agent acts without increasing topoisomerase II-DNA covalent cleavable complex formation, as do most topoisomerase inhibitors. (NCI04)"}]