Using CC(O)(C(=O)O)C(F)(F)F, Nc1cc(S(=O)(=O)c2ccccc2)ccc1Cl to produce CC(O)(C(=O)Nc1cc(S(=O)(=O)c2ccccc2)ccc1Cl)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.