Using CC(=O)OC1=CCc2c(Oc3ccc([N+](=O)[O-])cn3)cccc21, O=C(Cl)c1ccccc1 to produce O=C(OC1=CCc2c(Oc3ccc([N+](=O)[O-])cn3)cccc21)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.