Using CCOC(=O)c1cc(NC(=O)c2cc(CNC(=O)C(C)(C)C)ccc2Cl)ccc1OCC(F)F to produce CC(C)(C)C(=O)NCc1ccc(Cl)c(C(=O)Nc2ccc(OCC(F)F)c(C(=O)O)c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.