Using CCOC(=O)CBr, O=[N+]([O-])c1ccc(Cc2n[nH]c3ccccc23)cc1 to produce CCOC(=O)Cn1nc(Cc2ccc([N+](=O)[O-])cc2)c2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.