Using CCOC(=O)C=[N+]=[N-], C/C(=C\CBr)c1cccc([N+](=O)[O-])c1 to produce CCOC(=O)C1C(CBr)C1(C)c1cccc([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.