Using COc1ccccc1NS(=O)(=O)c1cccc(C=CC(=O)Cl)c1, NO to produce COc1ccccc1NS(=O)(=O)c1cccc(C=CC(=O)NO)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.