Using NO, COc1ccc(C(=O)c2ncc(C(F)(F)F)cc2Cl)cc1Br to produce COc1ccc(C(=NO)c2ncc(C(F)(F)F)cc2Cl)cc1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.