Using CC(C)(C)OC(=O)NCCBr, O=[N+]([O-])c1ccc(S)nc1 to produce CC(C)(C)OC(=O)NCCSc1ccc([N+](=O)[O-])cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.