Using NCc1ccc(Cl)cc1, CCOC(=O)c1cc2c3c(cc(CN4CCOCC4)cn3c1=O)CCC2 to produce O=C(NCc1ccc(Cl)cc1)c1cc2c3c(cc(CN4CCOCC4)cn3c1=O)CCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.