Using Fc1cc(F)cc(Br)c1, CCC[C@H]1CC[C@H]([C@H]2CC[C@H](CCCC=O)CC2)CC1 to produce CCC[C@H]1CC[C@H]([C@H]2CC[C@H](CCC=Cc3cc(F)cc(F)c3)CC2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.