Using CC(C)(C)[Si](C)(C)OCC(O)c1ccc(Br)nc1, CC(C)(C)[Si](C)(C)OS(=O)(=O)C(F)(F)F to produce CC(C)(C)[Si](C)(C)OCC(O[Si](C)(C)C(C)(C)C)c1ccc(Br)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.