Using CC(C)N1CC(COc2ccc([N+](=O)[O-])c(C=C3NC(=O)NC3=O)c2)OC1=O to produce CC(C)N1CC(COc2ccc3nc4[nH]c(=O)[nH]c4cc3c2)OC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.