Using C=CCOC(=O)c1c(Oc2nc(OC)cc(OC)n2)ccc2[nH]c(C)c([N+](=O)[O-])c12 to produce C=CCOC(=O)c1c(Oc2nc(OC)cc(OC)n2)ccc2[nH]c(C)c(N)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.