Acetic acid (4aR,6S,7R,8aS)-6-[4-((2R,3S)-3-benzyloxy-tetrahydro-pyran-2-yl)-2,3-dioxo-butyl]-2,2-dimethyl-hexahydro-pyrano[3,2-d][1,3]dioxin-7-yl ester

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

Acetic acid (4aR,6S,7R,8aS)-6-((2R,4aR,8aS)-2-hydroxy-3-oxo-octahydro-pyrano[3,2-b]pyran-2-ylmethyl)-2,2-dimethyl-hexahydro-pyrano[3,2-d][1,3]dioxin-7-yl ester

Acetic acid (4aR,6S,7R,8aS)-2,2-dimethyl-6-prop-2-ynyl-hexahydro-pyrano[3,2-d][1,3]dioxin-7-yl ester

Acetic acid (4aR,6S,7R,8aS)-6-(2-iodo-allyl)-2,2-dimethyl-hexahydro-pyrano[3,2-d][1,3]dioxin-7-yl ester