Using CC(C)(C)OC(=O)Nc1ccc(Br)cc1[N+](=O)[O-], OB(O)c1cccs1 to produce CC(C)(C)OC(=O)Nc1ccc(-c2cccs2)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.