Using CC(C)(C)[Si](C)(C)Cl, OCc1cc2ccc(Br)cc2[nH]1 to produce CC(C)(C)[Si](C)(C)OCc1cc2ccc(Br)cc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.