6-iodo-3,4-di-O-acetyl-D-glucal

6-deoxy-D-glucal

(2R,3S,4R)-2-Methyl-3,4-dihydro-2H-pyran-3,4-diol

(2R,3R)-3-hydroxy-2-methyl-2,3-dihydro-4H-pyran-4-one