Using Fc1cccc(CBr)c1F, CN(C)S(=O)(=O)n1ccnc1[Si](C)(C)C(C)(C)C to produce CN(C)S(=O)(=O)n1cc(Cc2cccc(F)c2F)nc1[Si](C)(C)C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.