Using C[Si](C)(Cl)Cl, CC(C)(C)c1cc(Br)c2c(c1)C(C)(C)c1cc(C(C)(C)C)cc(Br)c1O2 to produce CC(C)(C)c1cc2c(c([Si](C)(C)Cl)c1)Oc1c(cc(C(C)(C)C)cc1[Si](C)(C)Cl)C2(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.