Using NO, CNc1nc(-c2cc(C(=O)Nc3ccc(F)c(Cl)c3)no2)cs1 to produce CNc1nc(-c2cc(C(=NO)Nc3ccc(F)c(Cl)c3)no2)cs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.