Using CS(=O)(=O)c1ccc([C@@H](CC2CCC(=O)CC2)C(=O)Nc2ccc(Cl)cn2)cc1Cl, NO to produce CS(=O)(=O)c1ccc([C@@H](CC2CCC(=NO)CC2)C(=O)Nc2ccc(Cl)cn2)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.