Task: Please answer the following question about the molecule with SMILES CC[C@@]1(O)CC(=O)OCc2c1cc1n(c2=O)Cc2cc3cc(F)c(F)cc3nc2-1.
Request: Please provide a description of this drug's mechanism of action.
Result: DNA topoisomerase I inhibitor
Task: Please answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
CC[C@@]1(O)CC(=O)OCc2c1cc1n(c2=O)Cc2cc3cc(F)c(F)cc3nc2-1
CC[C@@]1(O)CC(=O)OCc2c1cc1n(c2=O)Cc2cc3cc(F)c(F)cc3nc2-1
(20R)-20-ethyl-6,7-difluoro-20-hydroxy-17-oxa-3,13-diazapentacyclo[11.9.0.02,11.04,9.015,21]docosa-1(22),2(11),3,5,7,9,15(21)-heptaene-14,18-dione
Please provide a description of this drug's mechanism of action.
DNA topoisomerase I inhibitor