methyl (R)-3-((1aR,3aR,3bS,5aR,8aS,8bR,10R,10aR)-5a-(((tert-butyldimethylsilyl)oxy)methyl)-10-methoxy-3a-methyl-1,1a,2,3,3a,3b,4,5,5a,8,8a,8b,9,10-tetradecahydrocyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-yl)butanoate

(2R,2aR,3aR,5aR,5bS,7aR,7bR,8S,11aS,12aS,12bR,Z)-7a-(((tert-butyldimethylsilyl)oxy)methyl)-2-methoxy-5a,8-dimethyl-9-(2-methylpropylidene)octadecahydro-10H-cyclopropa[1',7a']indeno[5',4':4,5]indeno[2,1-b]pyran-10-one

((1aR,3aR,3bS,5aR,8aS,8bR,10R,10aR,Z)-6-ethylidene-10-methoxy-3a-methyltetradecahydrocyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-5a(1H)-yl)methyl acetate

methyl (R)-3-((1aR,3aR,3bS,5aR,8aS,8bR,10R,10aR)-5a-(acetoxymethyl)-10-methoxy-3a-methyl-1,1a,2,3,3a,3b,4,5,5a,8,8a,8b,9,10-tetradecahydrocyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-yl)butanoate