Using COc1cc(OCc2ccccc2)ccc1C(=O)Nc1[nH]c(=O)ccc1[N+](=O)[O-] to produce COc1cc(O)ccc1C1=NC2=CCC(=O)NC2=N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.