Using CC(C)Br, COC(=O)c1c(-c2ccc(F)cc2)oc2ccc(O)cc12 to produce COC(=O)c1c(-c2ccc(F)cc2)oc2ccc(OC(C)C)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.