Using C[C@@H](O)[C@@H](C)Oc1nc(Cl)ncc1Br, C[Si](C)(C)CCS(=O)(=O)N=S(=O)(CCO)c1ccc(N)cc1 to produce C[C@@H](O)[C@@H](C)Oc1nc(Nc2ccc(S(=O)(CCO)=NS(=O)(=O)CC[Si](C)(C)C)cc2)ncc1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.