Using NCCc1c[nH]c2ccc(Cl)cc12, CCOC(=O)C1(C(=O)[O-])CCC1 to produce CCOC(=O)C1(C(=O)NCCc2c[nH]c3ccc(Cl)cc23)CCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.