Using CON(C)C(=O)CO[Si](C)(C)C(C)(C)C, Fc1cccc(Br)c1 to produce CC(C)(C)[Si](C)(C)OCC(=O)c1cccc(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.