Using O=C(Cl)c1cccc2ccccc12, O=C1NC(=O)C2(CCCCC2)N1 to produce O=C1NC2(CCCCC2)C(=O)N1C(=O)c1cccc2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.