Using COC(=O)c1c(F)c(OC)cc(O[Si](C)(C)C(C)(C)C(C)C)c1C=O to produce COC(=O)c1c(C)c(O[Si](C)(C)C(C)(C)C(C)C)cc(OC)c1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.