Using NOS(=O)(=O)O, COC(=O)CCS(=O)(=O)C(C)(C)c1ncc(Br)s1 to produce CC(C)(c1ncc(Br)s1)S(N)(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.