乙酸酐

1,6-脱水-2-脱氧-2-碘-D-吡喃葡萄糖

1,6-脱水-beta-d-吡喃甘露糖

2,3,4-Tri-O-acetyl-6-O-p-toluenesulfonyl-β-D-glucopyranose

acetyl 2,3,4-tri-O-acetyl-6-O-tosyl-α/β-D-mannopyranose