Using CCC(Cl)C(=O)Nc1c(C(=O)CC(=O)Nc2nccs2)cccc1C(F)(F)F to produce CCC1OC(=Nc2nccs2)c2c1nc1c(C(F)(F)F)cccc1c2O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.