Using CCOC(=O)c1c(Cl)ccc(CNC(=O)C(C)(C)C(F)(F)F)c1F to produce CC(C)(C(=O)NCc1ccc(Cl)c(C(=O)O)c1F)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.