Using CC[Si](CC)(CC)c1cc(Br)nc([C@](C)(O)CN)c1F, O=[N+]([O-])c1ccc(S(=O)(=O)Cl)cc1 to produce CC[Si](CC)(CC)c1cc(Br)nc([C@](C)(O)CNS(=O)(=O)c2ccc([N+](=O)[O-])cc2)c1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.