3-[(2R,4aR,6S,7R,8R,8aS)-7-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-8-hydroxy-2-(4-methoxy-phenyl)-hexahydro-pyrano[3,2-d][1,3]dioxin-6-ylsulfanyl]-propionic acid methyl ester

3-[(2S,3R,4R,5S,6R)-3-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-4,5-dihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-ylsulfanyl]-propionic acid methyl ester

3-[(2R,4aR,6S,7R,8R,8aR)-8-(tert-Butyl-dimethyl-silanyloxy)-7-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-2-(4-methoxy-phenyl)-hexahydro-pyrano[3,2-d][1,3]dioxin-6-ylsulfanyl]-propionic acid methyl ester

3-[(2S,3R,4R,5R,6R)-4-(tert-Butyl-dimethyl-silanyloxy)-3-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-6-hydroxymethyl-5-(4-methoxy-benzyloxy)-tetrahydro-pyran-2-ylsulfanyl]-propionic acid methyl ester

3-[(2S,3R,4R,5R,6R)-6-Azidomethyl-4-(tert-butyl-dimethyl-silanyloxy)-3-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-5-(4-methoxy-benzyloxy)-tetrahydro-pyran-2-ylsulfanyl]-propionic acid methyl ester