Using C=CCBr, O=[N+]([O-])c1ccc([N+](=O)[O-])c(O)c1 to produce C=CCOc1cc([N+](=O)[O-])ccc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.