(4aS,6aS,11aR,11bS)-8-(methoxymethyl)-4,4,6a,11b-tetramethyl-1,2,3,4,4a,5,6,6a,11,11a-decahydro-11bH-benzo[a]fluorene-7,10-dione

(4R,4aR,6aS,11aR,11bR)-4-(hydroxymethyl)-10-methoxy-4,6a,-11b-trimethyl-2,3,4,4a,5,6,6a,11,11a,11b-decahydro-1H-benzo[a]-fluorene-7-carbaldehyde

(1R,4aR,5S,6S,8aR)-methyl 5-(3,4-dimethylpent-3-enyl)-6-(hydroxymethyl)-1,4a-dimethyl-decahydronaphthalene-1-carboxylate

(4R,4aR,6aS,11aR,11bR)-4-(hydroxymethyl)-10-methoxy-4,6a,11b-trimethyl-2,3,4,4a,5,6,6a,11,11a,11b-decahydro-1H-benzo[a]fluoren-7-yl formate

(1R,4aR,5S,6S,8aR)-methyl 6-(hydroxymethyl)-1,4a-dimethyl-5-(3-oxobutyl)-decahydronaphthalene-1-carboxylate

(4R,4aR,6aS,11aR,11bR)-4-(iodomethyl)-10-methoxy-4,6a,11btrimethyl-2,3,4,4a,5,6,6a,7,10,11,11a,11b-dodecahydro-1H-benzo[a]fluoren-7-yl formate

(1R,4aR,5R,6S,8aR)-methyl 6-formyl-1,4a,6-trimethyl-5-(2-(2-methyl-1,3-dioxolan-2-yl)ethyl)-decahydronaphthalene-1-carboxylate

(1R,4aR,5S,8aR)-methyl 6-(hydroxymethyl)-1,4a-dimethyl-5-(2-(2-methyl-1,3-dioxolan-2-yl)ethyl)-decahydronaphthalene-1-carboxylate

(4aS,6aS,11aR,11bS)-10-methoxy-4,4,6a,11b-tetramethyl-2,3,4,4a,5,6,6a,11,11a,11b-decahydro-1H-benzo[a]fluoren-7-ol

(1R,4aR,5S,6S,8aR)-methyl 6-formyl-1,4a-dimethyl-5-(2-(2-methyl-1,3-dioxolan-2-yl))-decahydronaphthalene-1-carboxylate

(4aS,6aS,11aR,11bS)-8-bromo-10-methoxy-4,4,6a,11b-tetramethyl-2,3,4,4a,5,6,6a,11,11a,11b-decahydro-1H-benzo[a]fluoren-7-ol

(3aR,5aR,6R,9aR,9bS)-methyl 2-acetyl-3a,6,9a-trimethyl-3a,4,5,5a,6,7,8,9,9a,9b-decahydro-1H-cyclopenta[a]naphthalene-6-carboxylate

(4aS,6aS,11aR,11bS)-7,10-dimethoxy-4,4,6a,11b-tetramethyl-2,3,4,4a,5,6,6a,11,11a,11b-decahydro-1H-benzo[a]fluorene-8-carbaldehyde

(4R,4aR,6aS,11aR,11bR)-dimethyl 10-acetoxy-4,6a,11b-trimethyl-2,3,4,4a,5,6,6a,11,11a,11b-decahydro-1H-benzo[a]fluorene-4,7-dicarboxylate

((4aS,6aS,11aR,11bS)-7,10-dimethoxy-4,4,6a,11b-tetramethyl-2,3,4,4a,5,6,6a,11,11a,11b-decahydro-1H-benzo[a]fluoren-8-yl)-methanol

(4R,4aR,6aS,11aR,11bR)-dimethyl 10-hydroxy-4,6a,11b-trimethyl-2,3,4,4a,5,6,6a,11,11a,11b-decahydro-1H-benzo[a]fluorene-4,7-dicarboxylate

(4aS,6aS,11aR,11bS)-7,10-dimethoxy-8-(methoxymethyl)-4,4,6a,11b-tetramethyl-2,3,4,4a,5,6,6a,11,11a,11b-decahydro-1H-benzo[a]fluorene

(3aR,5aR,6R,9aR,9bS)-methyl 2-(1-acetoxyvinyl)-3a,6,9a-trimethyl-3a,4,5,5a,6,7,8,9,9a,9b-decahydro-1H-cyclopenta[a]naphthalene-6-carboxylate

(4aS,6aS,11aR,11bS)-8-bromo-7,10-dimethoxy-4,4,6a,11btetramethyl-2,3,4,4a,5,6,6a,11,11a,11b-decahydro-1H-benzo[a]-fluorene