Using CN1C(=O)C(c2cccc(-c3cccnc3F)c2)(c2cc(C=O)n(CCCF)c2)N=C1N, NO to produce CN1C(=O)C(c2cccc(-c3cccnc3F)c2)(c2cc(C=NO)n(CCCF)c2)N=C1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.