(4aR,6S,7R,8aS)-7-(tert-Butyl-dimethyl-silanyloxy)-2,2,4a-trimethyl-6-(3-trimethylsilanyl-prop-2-ynyl)-hexahydro-pyrano[3,2-d][1,3]dioxine

(4S,5R)-4-[1,3]Dithian-2-ylmethyl-2-phenyl-[1,3]dioxan-5-ol

(E)-3-[(4S,5R)-4-(2-Oxo-ethyl)-2-phenyl-[1,3]dioxan-5-yloxy]-acrylic acid ethyl ester