Using CC1(C)OB(c2cnc(N)nc2)OC1(C)C, CC(C)(C)Nc1ccc(Br)cc1[N+](=O)[O-] to produce CC(C)(C)Nc1ccc(-c2cnc(N)nc2)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.