Using COC(=O)c1ccc(-c2cc(Cl)c(CN3CCC(C4CCCCC4)C3=O)c(Cl)c2)cc1 to produce O=C(O)c1ccc(-c2cc(Cl)c(CN3CCC(C4CCCCC4)C3=O)c(Cl)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.