(3aS,4R,5S,6R,7aR)-6-hydroxymetyl-2,2-dimethylperhydro-1,3-benzodioxole-4,5-diol

methyl (3aR,5S,7R,7aR)-7-acetyloxy-2,2-dimethylperhydro-1,3-benzodioxole-5-carboxylate

(3aS,4R,5R,7aR)-6-iodo-2,2-dimethyl-3a,4,5,7a-tetrahydro-1,3-benzodioxole-4,5-diol