Using COC(=O)c1ccc(F)c(-c2c(F)cc(O)cc2F)n1, CC(C)(C)[Si](C)(C)OCCBr to produce COC(=O)c1ccc(F)c(-c2c(F)cc(OCCO[Si](C)(C)C(C)(C)C)cc2F)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.