Using FC(F)(F)c1ccccc1C1OC1(Cn1cncn1)c1ccc(Cl)cc1 to produce OC(C(=Cn1cncn1)c1ccc(Cl)cc1)c1ccccc1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.