Using Cc1ccc(S(=O)(=O)n2c(C)c(C=O)c3ccccc32)cc1 to produce Cc1ccc(S(=O)(=O)n2c(C)c(CO)c3ccccc32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.