Using CC(O)Cl, O=C1CCC(N2C(=O)c3ccccc3C2=O)C(=O)N1 to produce O=C1CCC(N2C(=O)c3ccccc3C2=O)C(=O)N1CCO, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.