Using CC(=O)c1c(OCc2ccccc2)ccc(Oc2c(C)cc([N+](=O)[O-])c3c2CCC3)c1O, O=C([O-])[O-] to produce COc1c(Oc2c(C)cc([N+](=O)[O-])c3c2CCC3)ccc(OCc2ccccc2)c1C(C)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.