Using CS(=O)(=O)OCC1COc2c(F)ccc(F)c2C1S(=O)(=O)c1ccc(Cl)cc1 to produce CC1COc2c(F)ccc(F)c2C1S(=O)(=O)c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.