3-?Deoxy-?D-?arabino-?hexonic Acid δ-?Lactone 2,?4,?6-?Triacetate is an intermediate in the synthesis of 3-Deoxy-D-arabino-hexonic Acid Calcium Salt (D232055), which has been shown to not play a major role in the initial hydrothermal decarboxylation of biomass. 3-?Deoxy-?D-?arabino-?hexonic Acid δ-?Lactone 2,?4,?6-?Triacetate is also an intermediate in the synthesis of Leptosphaerin.