Using COc1ccc(C(=O)N2CCC(N3C(=O)CCc4cc([N+](=O)[O-])ccc43)CC2)c(OC)c1 to produce COc1ccc(C(=O)N2CCC(N3C(=O)CCc4cc(N)ccc43)CC2)c(OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.