Using O=C1NC(=O)C(Cc2c[nH]c3ccc(Cl)cc23)N1, CCN(CC)CCCCl to produce CCN(CC)CCCN1C(=O)NC(Cc2c[nH]c3ccc(Cl)cc23)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.