(4aR,6S,7R,8aS)-2,2-Dimethyl-6-prop-2-ynyl-hexahydro-pyrano[3,2-d][1,3]dioxin-7-ol

[(4aR,6S,7R,8aS)-7-(tert-Butyl-dimethyl-silanyloxy)-2,2-dimethyl-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yl]-acetaldehyde

tert-Butyl-[(4aR,6S,7R,8aS)-6-(3,3-dibromo-allyl)-2,2-dimethyl-hexahydro-pyrano[3,2-d][1,3]dioxin-7-yloxy]-dimethyl-silane

(4aR,7R,8aS)-7-(tert-Butyl-dimethyl-silanyloxy)-2,2-dimethyl-tetrahydro-pyrano[3,2-d][1,3]dioxin-6-one