Using COc1ccc2c(c1)C(O)(CC(F)(F)C(N)=O)c1cc(Br)cnc1O2 to produce COc1ccc2c(c1)C1(CC(F)(F)C(=O)N1)c1cc(Br)cnc1O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.