[2-[5-[6-(1-benzyloxymethyl-propyl)-4-cyano-2,2-dimethyl-[1,3]dioxan-4-yl]-2-(tert-butyl-dimethyl-silanyloxy)-pentyl]-4-(tert-butyl-dimethyl-silanyloxy)-5-hydroxy-2-methoxy-hexahydro-pyrano[4,3-b]pyran-7-ylmethyl]-phosphonic acid diethyl ester

4-(tert-butyl-dimethyl-silanyloxy)-6-{2-(tert-butyl-dimethyl-silanyloxy)-5-[4-cyano-6-(1-hydroxymethyl-propyl)-2,2-dimethyl-[1,3]dioxan-4-yl]-pentyl}-2-[3-(diethoxy-phosphoryl)-2-oxo-propyl]-6-methoxy-tetrahydro-pyran-3-carboxylic acid methyl ester

4-(tert-butyl-dimethyl-silanyloxy)-6-{2-(tert-butyl-dimethyl-silanyloxy)-5-[6-(1-carboxy-propyl)-4-cyano-2,2-dimethyl-[1,3]dioxan-4-yl]-pentyl}-2-[3-(diethoxy-phosphoryl)-2-oxo-propyl]-6-methoxy-tetrahydro-pyran-3-carboxylic acid methyl ester