Using CC(C)(C)[Si](C)(C)Cl, O=C1CCn2c1cc1cc(Br)ccc12 to produce CC(C)(C)[Si](C)(C)OC1CCn2c1cc1cc(Br)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.