Using COC(=O)[C@@H]1C[C@@H](NC(=O)c2ccc(Cl)s2)CN1, NC(=O)C(Br)c1ccc(-n2ccccc2=O)cc1F to produce COC(=O)[C@@H]1C[C@@H](NC(=O)c2ccc(Cl)s2)CN1CC(=O)Nc1ccc(-n2ccccc2=O)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.