Using CC(C)Oc1cc(-n2c(Cl)nc(C(F)(F)C(F)(F)F)cc2=O)c(F)cc1Cl to produce CC(C)Oc1cc(-n2c(OC(C)C)nc(C(F)(F)C(F)(F)F)cc2=O)c(F)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.