Using NO, O=C(O)CC(F)(F)C(=O)c1ccc2oc3ccccc3c2c1 to produce O=C(O)CC(F)(F)C(=NO)c1ccc2oc3ccccc3c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.