[(2R,4R,6S)-6-((Z)-(R)-7-Benzyloxy-4-hydroxy-2-oxo-6-triethylsilanyloxy-hept-3-enyl)-2-(4-methoxy-phenyl)-[1,3]dioxan-4-yl]-acetic acid tert-butyl ester

[(2R,4R,6S)-6-(2-Oxo-ethyl)-2-phenyl-[1,3]dioxan-4-yl]-acetic acid tert-butyl ester

tert-butyl 2-[(6S,4R)-6-(hydroxymethyl)-2-(4-methoxyphenyl)-1,3-dioxan-4-yl]acetate

tert-butyl (2S,4R,6S)-2-(4-methoxyphenyl)-6-(2-oxoethyl)-[1,3]dioxan-4-ylacetate

[(2S,4R,6S)-6-Iodomethyl-2-(4-methoxy-phenyl)-[1,3]dioxan-4-yl]-acetic acid tert-butyl ester