[(2R,4S,6R,8R,10S)-8-benzyloxymethyl-4,10-dihydroxy-10-methyl-1,7-dioxaspiro[5.5]undec-2-yl]acetic acid tert-butyl ester

(S)-4-(2-Methyl-allyl)-2-phenyl-[1,3]dioxolane

(2S)-1-{[t-butyl(dimethyl)silyl]oxy}-4-methylpent-4-en-2-ol

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

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