Using COc1ccc(-c2cc(=Nc3c(C)cc(C)cc3C)n(C)c(=O)n2C)cc1[N+](=O)[O-] to produce COc1ccc(-c2cc(=Nc3c(C)cc(C)cc3C)n(C)c(=O)n2C)cc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.