Using COC(=O)c1c2c(cc(/C=C/C(=O)O)c1NS(=O)(=O)c1ccccc1)CCCC2 to produce O=C(O)/C=C/c1cc2c(c(C(=O)O)c1NS(=O)(=O)c1ccccc1)CCCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.