Using COc1cccc(-c2ccc3c(C=O)c(OC)ccc3c2)c1, NS(=O)(=O)O to produce COc1cccc(-c2ccc3c(C(=O)O)c(OC)ccc3c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.