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

methyl (R)-3-((1aR,3aR,3bS,5aR,8aS,8bR,10R,10aR)-5a-(hydroxymethyl)-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

(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)butan-1-ol

(1aR,3aR,3bS,5aR,6R,7R,8aS,8bR,10R,10aR)-5a-(((tert-butyldimethylsilyl)oxy)methyl)-6-((R)-4-hydroxybutan-2-yl)-10-methoxy-3a-methylhexadecahydrocyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-7-ol