Using COc1ccc(S(=O)(=O)N(Cc2ccccc2)c2c(C)ccc(C)c2CO)cc1 to produce COc1ccc(S(=O)(=O)N(Cc2ccccc2)c2c(C)ccc(C)c2C=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.