[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is a triterpene quassinoid antineoplastic antibiotic isolated from the plant Brucea antidysenterica.  Bruceantin inhibits the peptidyl transferase elongation reaction, resulting in decreased protein and DNA synthesis.  Bruceantin also has antiamoebic and antimalarial activity. (NCI04)"}, {"from": "gpt", "value": "[C][C][=C][Branch2][=Branch1][O][C][=Branch1][C][=O][C][C@][Branch2][Branch1][P][C@H1][Ring1][#Branch1][C][C@@H1][C@][C@@H1][Ring1][=Branch1][C@H1][Branch2][Branch1][Ring1][C@@H1][Branch2][Ring2][=C][C@][Branch2][Ring1][=N][C@@H1][Ring1][=Branch1][C@H1][Branch1][Branch2][C][=Branch1][C][=O][O][Ring1][O][O][C][=Branch1][C][=O][C][=C][Branch1][C][C][C][Branch1][C][C][C][Branch1][=Branch1][O][C][Ring2][Ring1][Branch1][C][=Branch1][C][=O][O][C][O][O][C][O]"}]