Using CCO, O=C(O)CCCc1ccc(Oc2ccc([N+](=O)[O-])cn2)cc1 to produce CCOC(=O)CCCc1ccc(Oc2ccc([N+](=O)[O-])cn2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.