Using NCCc1c[nH]c2ccc(Cl)cc12, CCc1ccccc1N1CCC(C(=O)O)C1=O to produce CCc1ccccc1N1CCC(C(=O)NCCc2c[nH]c3ccc(Cl)cc23)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.