a The Noguchi Institute, 1-8-1 Kaga, Itabashi-ku, Tokyo 173-0003, Japan b Department of Chemistry, School of Science, Tokai University, Kitakaname 1117, Hiratsuka, Kanagawa 259-1292, Japan
Abstract:
A partially benzylated derivative of the anhydro-d-altro-heptulose found in Coriaria japonica A, which is a synthetically useful unit, was successfully synthesized from a d-mannose derivative by a novel synthetic approach involving an intramolecular O-ketopyranosylation.