Toluene-4-sulfonic acid (R)-2-(tert-butyl-dimethyl-silanyloxy)-1-[(3aR,5S,6S,6aR)-6-(1-ethoxy-ethoxy)-2,2-dimethyl-tetrahydro-furo[2,3-d][1,3]dioxol-5-yl]-ethyl ester

2,5-di-O-benzyl-L-iditol

(4'R) methyl 5-C:3-O-(azetidin-2'-on-1',4'-diyl)-1,2-O-isopropylidene-β-L-idofuranouronate

a-D-gluco-Hexodialdo-1,4:6,3-difuranose, 1,2-O-(1-methylethylidene)-,5-(4-methylbenzenesulfonate), (6S)-

(4'R)-6-O-t-butyldimethylsilyl-5-deoxy-3-O:5-C-(azetidin-2'-on-1',4'-diyl)-1,2-O-isopropylidene-β-L-idofuranose