Using O=[N+]([O-])c1ccc(CBr)cc1OCc1ccccc1, CCCC(=O)c1ccccc1 to produce CCC(Cc1ccc([N+](=O)[O-])c(OCc2ccccc2)c1)C(=O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.