rac-(3R,3aS,4S,5S,6aR,7S,10R,10aS)-3-(benzyloxy)-6a-hydroxy-4,5,8,10-tetramethyl-1,2,3,3a,4,5,6,6a,7,10-decahydro-4,7-methanocyclopenta[d]naphthalen-11-one

rac-(3R,3aS,4S,5S,6aR,7S,9R,10S,10aS)-3-(benzyloxy)-6a,9-dihydroxy-4,5,10-trimethyl-8-methylenedodecahydro-4,7-methanocyclopenta[d]naphthalen-11-one

(1R,2R,3S,6S,7R,8S,9S,12R,14R)-9-Benzyloxy-3-methoxymethoxy-2,7,14-trimethyl-4-methylene-tricyclo[5.4.3.01,8]tetradecane-6,12-diol

(1S,2S,3R,7S,8S,9R,14S)-9-Benzyloxy-3-methoxymethoxy-2,7,14-trimethyl-4-methylene-tricyclo[5.4.3.01,8]tetradecan-6-one

rac-(3R,3aS,4S,5S,6aR,7S,9R,10S,10aS)-3-(benzyloxy)-6a-hydroxy-9-(methoxymethoxy)-4,5,10-trimethyl-8-methylenedodecahydro-4,7-methanocyclopenta[d]naphthalen-11-one