(1S,3R,3aR,4R,5R,6R,7aS)-4-tert-butyldimethylsiloxy-5,6-isopropylidenedioxy-3-[4-methoxy-3-(methoxymethoxy)benzyl]-7-methylene-1-(vinyl)octahydroindene

(3aR,4R,4aR,5R,7S,7aS,8aR)-5-(3-acetoxy-4-methoxybenzyl)-4-tert-butyldimethylsiloxy-8-methylene-7-(vinyl)octahydroindeno[5,6-d,1,3]dioxol-2-thione

(1S,3S,3aR,4S,7aS)-3-(3-hydroxy-4-methoxybenzyl)-7-methylene-1-vinyl-1,2,3,3a,7,7a-hexahydroindene-4-ol

(1S,3S,3aR,4S,7aS)-3-(3-dichloroacetoxy-4-methoxybenzyl)-1,2,3,3a,7,7a-hexahydro-7-methylene-1-(vinyl)inden-4-ol

(1S,3S,3aR,4S,7aS)-3-(3-acetoxy-4-methoxybenzyl)-4-tert-butyldimethylsiloxy-7-methylene-1-vinyl-1,2,3,3a,7,7a-hexahydroindene