Using CC(C)[Si](Cl)(C(C)C)C(C)C, OCc1cc(Br)ccc1Cl to produce CC(C)[Si](OCc1cc(Br)ccc1Cl)(C(C)C)C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.