Using O=C(Nc1c[nH]nc1-c1nc2c(CO)cccc2[nH]1)c1c(F)cccc1F to produce O=Cc1cccc2[nH]c(-c3n[nH]cc3NC(=O)c3c(F)cccc3F)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.