Using COC(=O)C(NC(=O)c1ncc(-c2ccc([N+](=O)[O-])cc2)s1)C(C)C, Fc1ccc(CBr)cc1 to produce COC(=O)C(NC(=O)c1ncc(-c2ccc(NCc3ccc(F)cc3)cc2)s1)C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.