(2R,4S,5R)-5-(t-butyldiphenylsiloxy)-2-phenyl-4-vinyl-1,3-dioxane

(4R,6S)-4-Benzyloxymethyl-2,2-dimethyl-6-((S)-(R)-1-oxiranyl-allyl)-[1,3]dioxane

(2R,3R)-3-((4S,6R)-6-Benzyloxymethyl-2,2-dimethyl-[1,3]dioxan-4-yl)-pent-4-ene-1,2-diol

(4R,6S)-4-Benzyloxymethyl-6-{(S)-1-[(R)-1,2-bis-(tert-butyl-dimethyl-silanyloxy)-ethyl]-allyl}-2,2-dimethyl-[1,3]dioxane