Using NCc1ccc2c(c1)CN(C1CCC(=O)NC1=O)C2=O, O=C(O)Cc1ccc(Cl)c(Cl)c1 to produce O=C(Cc1ccc(Cl)c(Cl)c1)NCc1ccc2c(c1)CN(C1CCC(=O)NC1=O)C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.