Using O=C1CCCc2c1cccc2-c1cccc(C(F)(F)F)c1, COC(=O)c1ccc(CBr)cc1 to produce COC(=O)c1ccc(CC2CCc3c(cccc3-c3cccc(C(F)(F)F)c3)C2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.