Using COC(=O)c1cc(CNC(=O)OC(C)(C)C)ccc1C(F)F to produce CC(C)(C)OC(=O)NCc1ccc(C(F)F)c(C(=O)O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.