5-deoxy-1,2-O-ispropylidene-3=C-methyl-α-D-ribofuranose

5-deoxy-1,2-isopropylidene-3-O-(p-methoxybenzyl)-α-D-ribofuranose

Formic acid (1R,2R)-2-allyloxy-1-methyl-3-oxo-propyl ester

(3aR,5R,6R,6aR)-6-Allyloxy-2,2,5-trimethyl-tetrahydro-furo[2,3-d][1,3]dioxole

Formic acid (1R,2S)-2-(4-methoxy-benzyloxy)-1-methyl-3-oxo-propyl ester