Using CCOC(=O)CNc1ccc(Cl)cc1Oc1ccc(C(F)(F)F)c(Cl)c1 to produce O=C(O)CNc1ccc(Cl)cc1Oc1ccc(C(F)(F)F)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.