Using COc1ccc2[nH]c(-c3cc([N+](=O)[O-])c(N4C(=O)c5cc([N+](=O)[O-])ccc5C(C)(C)C4=O)cc3OC)nc2n1 to produce COc1ccc2[nH]c(-c3cc([N+](=O)[O-])c(N)cc3OC)nc2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.