Using CC1(c2ccc([N+](=O)[O-])c(Oc3c(Cl)cccc3Cl)c2)OCCO1 to produce CC(=O)c1ccc([N+](=O)[O-])c(Oc2c(Cl)cccc2Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.