Using O=C(Cl)c1ccc(Cl)cc1, COc1ccc2[nH]c(=O)c(CC(N)C(=O)O)cc2c1 to produce COc1ccc2[nH]c(=O)c(CC(NC(=O)c3ccc(Cl)cc3)C(=O)O)cc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.