(3aR,5aS,6S,9aS,9bS)-5-(hydroxymethyl)-2,2,4,5a,9,9-hexamethyl-3a,5a,6,7,8,9,9a,9b-octahydronaphtho[1,2-d][1,3]dioxol-6-ol

(3aS,3bR,6aS,6bR,7S,10aS,10bS)-5-methoxy-7-((4-methoxybenzyl)oxy)-2,2,3b,6b,10,10-hexamethyloctahydronaphtho[1,2-d:3,4-d']bis([1,3]dioxole)-6a(3bH)-carbaldehyde

(1R)-5-((tert-butyldiphenylsilyl)oxy)-1-((3aS,3bR,6aR,6bR,7S,10aS,10bS)-5-methoxy-7-((4-methoxybenzyl)oxy)-2,2,3b,6b,10,10-hexamethyloctahydronaphtho[1,2-d:3,4-d']bis([1,3]dioxole)-6a(3bH)-yl)pent-2-yn-1-ol