Using COC(=O)/C=C/c1ccc(NS(=O)(=O)c2ccccn2)c(C(=O)OCc2ccccc2)c1C to produce COC(=O)CCc1ccc(NS(=O)(=O)c2ccccn2)c(C(=O)O)c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.