ChemInform Abstract: Synthesis and Conformation of Substituted 2,6‐Dioxabicyclo(3.1.1) heptanes: 1,3‐Anhydro‐6‐azido‐2,4‐di‐O‐benzyl‐6‐deoxy‐ and 1,3‐Anhydro‐ 6‐azido‐2,4‐di‐O‐(p‐bromobenzyl)‐6‐deoxy‐β‐D‐mannopyranose.