(1S,2S,3S,6R)-3-benzoyloxy-8,8-dimethyl-2-hydroxy-7,9-dioxabicyclo[4.3.0]non-4-ene

(1R,4S,7S,8R)-2,3-dioxabicyclo[2.2.2]oct-5-ene-7,8-diol

(3aR,4S,5S,6R,7R,7aS)-4,5,6,7-tetrakis(methoxymethoxy)hexahydrobenzo[d][1,3]dioxole-2-thione

5-exo,6-exo-isopropylidenedioxy-7-oxabicyclo[2.2.1]heptan-2-one

(1S,2S,3S,4S)-5-bromo-1,2:3,4-di-O-isopropylidenecyclohex-5-ene-1,2,3,4-tetraol