1 5H 5r-(4-bromophenylmethyl)-3-(benzenesulfonylamino)-4-oxo-2-thionothiazolidine 1.000 2 5EE 5r-(3,4-dichlorophenylmethyl)-3-(2-thiophenesulfonylamino)-4-oxo-2-thionothiazolidine 0.786