Using CC(C)(C)[Si](C)(C)Cl, OCc1cc(C(F)(F)F)ccc1Br to produce CC(C)(C)[Si](C)(C)OCc1cc(C(F)(F)F)ccc1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.