Using Cc1cn2cccc(O)c2n1, O=[N+]([O-])c1ccc(CBr)cc1 to produce Cc1cn2cccc(OCc3ccc([N+](=O)[O-])cc3)c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.