Using OC(c1cccc(F)c1)c1ccc(Br)s1, COC(O[Si](C)(C)C)=C(C)C to produce COC(=O)C(C)C(c1cccc(F)c1)c1ccc(Br)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.