Using COc1cc(C(C)(C)C(=O)CBr)ccc1F, [N-]=[N+]=[N-] to produce COc1cc(C(C)(C)C(=O)CN=[N+]=[N-])ccc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.