Using COc1cccc(NS(=O)(=O)c2cccc(C=CC(=O)Cl)c2)c1, NO to produce COc1cccc(NS(=O)(=O)c2cccc(C=CC(=O)NO)c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.