1,2:5,6-di-O-isopropylidene-3-deoxy-α-D-erythro-hex-3-enofuranose

[5-(2,2-dimethyl-1,3-dioxolan-4-yl)-2,2-dimethyl-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxol-6-yl] 4-methylbenzenesulfonate

Trifluoro-methanesulfonic acid (3aR,6S,6aR)-5-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-2,2-dimethyl-tetrahydro-furo[2,3-d][1,3]dioxol-6-yl ester

(3aR,5R,6S,6aR)-5-((R)-2,2-dimethyl-1,3-dioxolan-4-yl)-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-6-yl 2,2,2-trifluoro-1,1-diphenylethane-1-sulfonate