(2S,4aR,8aS)-2-Benzyloxymethyl-3-methylene-octahydro-pyrano[3,2-b]pyran

(3aS,4aR,8aS,10R,10aS)-10-(2,2-Dibromo-vinyl)-2,2-dimethyl-octahydro-1,3,5,9-tetraoxa-benzo[f]azulene

(3aS,4aR,8aS,10R,10aS)-10-Benzyloxymethyl-2,2-dimethyl-octahydro-1,3,5,9-tetraoxa-benzo[f]azulene

3-((3aS,4aR,8aS,10R,10aS)-2,2-Dimethyl-octahydro-1,3,5,9-tetraoxa-benzo[f]azulen-10-yl)-1-((2S,3R,4aR,8aS)-3-methyl-octahydro-pyrano[3,2-b]pyran-2-yl)-prop-2-yn-1-ol

3-((3aS,4aR,8aS,10R,10aR)-2,2-Dimethyl-octahydro-1,3,5,9-tetraoxa-benzo[f]azulen-10-yl)-1-((2S,3R,4aR,8aS)-3-methyl-octahydro-pyrano[3,2-b]pyran-2-yl)-propan-1-one