Using Fc1ccc(-c2ccc(Br)cc2)cc1F, CCCCC[Si@H]1CC[C@H](CCC2CCC(Br)CC2)CC1 to produce CCCCC[Si@H]1CC[C@H](CC[C@H]2CC[C@H](c3ccc(-c4ccc(F)c(F)c4)cc3)CC2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.