In the title compound, C15H15ClN2O5S, the tetra-hydro-furan ring adopts an envelope conformation with the O atom as the flap. The pyrrolidine ring adopts an envelope conformation with the chlorine-substituted C atom as the flap. In the crystal, two types of C-H⋯O hydrogen bonds generate R (2) 2(20) and R (4) 4(26) rings, with adjacent rings running parallel to ac plane. Further C-H⋯O hydrogen bonds form a C(6) chain, linking the mol-ecules in the b-axis direction.