(3R,4R)-2,5-Dioxo-1-m-tolyl-3,4-diyl diacetate

Abstract

In the enanti­omerically pure title compound, C15H15NO6, the five-membered ring displays a twist conformation with the local axis through the N atom. The acetyl groups are perpendicular to the ring [dihedral angles 80.3 (1) and 89.3 (1)°] and project to opposite sides. The packing is governed by two weak C—H⋯O inter­actions, forming layers of mol­ecules parallel to the ab plane.