Using CN(C)C=O, CC(C)(C)C(=O)Nc1cc(C(F)(F)F)c(Br)cn1 to produce CC(C)(C)C(=O)Nc1cc(C(F)(F)F)c(C=O)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.