Using NC(=O)c1c(Cl)nsc1-c1cccc(C(F)(F)F)c1, O=N[O-] to produce O=C(O)c1c(Cl)nsc1-c1cccc(C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.