Using O=C(c1ccc(F)cc1)c1cc(F)cc(C(F)(F)F)c1, NO to produce ON=C(c1ccc(F)cc1)c1cc(F)cc(C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.