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1‐O‐benzyl‐2,3‐O‐isopropylidene‐β‐L‐gulofuranose

Trifluoro-methanesulfonic acid (S)-1-((3aS,4S,6S,6aS)-6-benzyloxy-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-2-(tert-butyl-diphenyl-silanyloxy)-ethyl ester

1‐O‐benzyl‐2,3‐O‐isopropylidene‐5,6‐di‐O‐mesyl‐α‐D‐mannofuranose

5,6‐di‐O‐acetyl‐1‐O‐benzyl‐2,3‐O‐isopropylidene‐β‐L‐gulofuranose