(2S,2aS,4R,4aS,5R,6R,7R,7aS,7bR)-5-tert-butyldimethylsiloxy-2-hydroxy-6,7-(O-isopropylidenedioxy)decahydroindeno[7,1-bc]furan-4-carbaldehyde

(1R,3R,3aS,4S,5R,6R,7R,7aR)-7-tert-butyldimethylsiloxy-1-[(1S)-hydroxy[4-methoxy-3-(methoxymethoxy)phenyl]methyl]-3-hydroxymethyl-5,6-(isopropylidenedioxy)octahydroindene-4-ol

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

(1R,4S,4aR,5R,6S,7S,8aS)-5-tert-butyldimethylsiloxy-6,7-O-isopropylidenedioxy-1,4,4a,5,6,7,8,8a-octahydro-endo-1,4-methano-naphthalen-8-one

(1R,4S,4aR,5R,6R,7R,8S,8aS)-5-tert-butyldimethylsiloxy-6,7-O-isopropylidenedioxy-1,4,4a,5,6,7,8,8a-octahydro-endo-1,4-methanonaphthalen-8-ol