methyl 1,2:3,5-di-O-isopropylidene-β-L-idofuranuronate

(3aR,3bS,7aR,8aR)-2,2,5,5,7-Pentamethyl-tetrahydro-[1,3]dioxolo[4,5]furo[3,2-d][1,3]dioxine