Using O=[N+]([O-])c1cccc(S(=O)(=O)OC[C@@H]2CO2)c1, COC(=O)COc1cc(O)c(Cl)cc1Cl to produce COC(=O)COc1cc(OCC2CO2)c(Cl)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.