Using CC[N+](=O)[O-], COc1cc(C=O)c(OC)c(C)c1C to produce COc1cc(C=C(C)[N+](=O)[O-])c(OC)c(C)c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.