Using CC(C)OC(=O)N1c2cc(C(F)(F)F)c(F)cc2C(=O)CC1C, NO to produce CC(C)OC(=O)N1c2cc(C(F)(F)F)c(F)cc2C(=NO)CC1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.