Using COc1ccc(N2CCC(C(=O)O)C2=O)cc1, NCCc1c[nH]c2ccc(Cl)cc12 to produce COc1ccc(N2CCC(C(=O)NCCc3c[nH]c4ccc(Cl)cc34)C2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.