Using CC(=O)O, COc1c(Cl)cc(C(F)(F)F)c2c1NC(=O)C2=O to produce COc1c(Cl)cc(C(F)(F)F)c(C(=O)O)c1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.