Using Nc1ncc(Cc2ccc(Cl)cc2)o1, O=C(O)C(c1ccccc1)C1CCCCC1 to produce O=C(Nc1ncc(Cc2ccc(Cl)cc2)o1)C(c1ccccc1)C1CCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.