[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][=C][C][N][C][=Branch2][Ring1][Branch2][=C][C][=C][Branch1][Branch1][C][Ring1][=Branch1][=O][C][O][C][=Branch1][C][=O][C@@][Ring1][=Branch2][Branch1][Ring1][C][C][O][C][Ring2][Ring1][C][=N][C][=C][Ring2][Ring1][=Branch1][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O]"}, {"from": "gpt", "value": "The molecule is a member of the class of pyranoindolizinoquinolines that is (4S)-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14-dione bearing two additional ethyl substituents at positions 4 and 11 as well as two additional hydroxy substituents at positions 4 and 9. It is the active metabolite of irinotecan and is ~1000 times more active than irinotecan itself. It has a role as an apoptosis inducer, an EC 5.99.1.2 (DNA topoisomerase) inhibitor, a drug metabolite and an antineoplastic agent. It is a pyranoindolizinoquinoline, a delta-lactone, a tertiary alcohol and a member of phenols."}]