Using COC(=O)c1c(CS(=O)(=O)c2ccccc2)ccc(-c2ccoc2C(C)O)c1O to produce COC(=O)c1c(CS(=O)(=O)c2ccccc2)ccc2c1OC(C)c1occc1-2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.