Using COc1cc2nccc(N3CCOc4ccc(-c5cnc(N)c([N+](=O)[O-])c5)cc4C3)c2cc1OC to produce COc1cc2nccc(N3CCOc4ccc(-c5cnc(N)c(N)c5)cc4C3)c2cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.