Using CC(C)(C)[Si](C)(C)Cl, OCC(F)(F)C(O)c1cc(Br)ccc1F to produce CC(C)(C)[Si](C)(C)OCC(F)(F)C(O)c1cc(Br)ccc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.