Using CN(C)C=O, CSc1cc(Br)ccc1C1NC(=O)N(c2cccc(C(F)(F)F)c2)C2=C1C(=O)CC2 to produce CSc1cc(C#N)ccc1C1NC(=O)N(c2cccc(C(F)(F)F)c2)C2=C1C(=O)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.