Using c1nc[nH]n1, FC(F)(F)c1cc(Cl)c2cccc(C(F)(F)F)c2n1 to produce FC(F)(F)c1cc(-n2cncn2)c2cccc(C(F)(F)F)c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.