Using CCCN(C)S(=O)(=O)c1cc(C(=O)OC)c(OCc2ccccc2)cc1OCc1ccccc1 to produce CCCN(C)S(=O)(=O)c1cc(C(=O)O)c(OCc2ccccc2)cc1OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.