Using O=[N+]([O-])c1cccc(B(O)O)c1, CC1(C)OC(c2ccc(S(C)(=O)=O)cc2)=C(Br)C1=O to produce CC1(C)OC(c2ccc(S(C)(=O)=O)cc2)=C(c2cccc([N+](=O)[O-])c2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.