[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C@][Branch2][Ring2][Ring2][C][C][=Branch1][C][=O][O][C][C][=C][Ring1][Branch2][C][=C][C][=N][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][Ring1][#Branch2][C][N][Ring1][=N][C][Ring1][P][=O][O]"}, {"from": "gpt", "value": "The molecule is an organic heteropentacyclic compound that is (5R)-5-ethyl-5-hydroxy-8-(quinolin-3-ylmethyl)-1,4,5,8-tetrahydrooxepino[3,4-c]pyridine-3,9-dione in which position 7 of the oxepinopyridine group has been joined to position 2 of the quinoline ring by a single bond. A semisynthetic analogue of camptothecin, it is an inhibitor of topoisomerase I. It has a role as an EC 5.99.1.2 (DNA topoisomerase) inhibitor and an antineoplastic agent. It is an organic heteropentacyclic compound, an epsilon-lactone, an organonitrogen heterocyclic compound and a tertiary alcohol."}]