Using C=C(C(=O)Nc1ccc(O)c([N+](=O)[O-])c1)c1cc(C(C)(C)C)c(O)c(C(C)(C)C)c1 to produce C=C(C(=O)Nc1ccc(O)c(N)c1)c1cc(C(C)(C)C)c(O)c(C(C)(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.