Using O=C(NCCCOc1c(Cl)cc(OCc2ccccc2)cc1Cl)c1ccc(C(F)(F)F)cc1 to produce O=C(NCCCOc1c(Cl)cc(O)cc1Cl)c1ccc(C(F)(F)F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.