Using [NH4+], Cc1cc(C(F)(C(F)(F)F)C(F)(F)F)cc(C)c1NC(=O)c1ccc(C#N)c(F)c1F to produce Cc1cc(C(F)(C(F)(F)F)C(F)(F)F)cc(C)c1NC(=O)c1ccc(C#N)c(N)c1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.