Using CC(Br)Br, CC(Cc1cc(F)cc2ccoc12)NC(=O)OC(C)(C)C to produce CC(Cc1cc(F)cc2cc(Br)oc12)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.