Using O=[N+]([O-])c1ccc(S)cc1, CC(C)c1nc(C(C)C)c(CO[Si](C)(C)C(C)(C)C)c(-c2ccc(F)cc2)c1CBr to produce CC(C)c1nc(C(C)C)c(CSc2ccc([N+](=O)[O-])cc2)c(-c2ccc(F)cc2)c1CO, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.