Using CS(=O)(=O)c1ccc(O)cc1, Cc1cc(CCl)c2ccccc2n1 to produce Cc1cc(COc2ccc(S(C)(=O)=O)cc2)c2ccccc2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.