(1S,7aR)-7a-Methyl-5-oxo-2,3,5,6,7,7a-hexahydro-1H-indene-1-carbonitrile

((1S,7aR)-7a-methyl-1,2,3,6,7,7a-hexahydrospiro[indene-5,2'-[1,3]dioxolan]-1-yl)methanol

(1S,3aS,4S,7aR)-7a-Methyl-5-oxo-6-phenylsulfanyl-4-[(R)-2-(4,6,7,8-tetrahydro-benzo[1,3]dioxin-8a-yl)-ethyl]-3a-trimethylsilanyloxy-octahydro-indene-1-carbonitrile

(1S,7aR)-1-(4-Methoxy-benzyloxymethyl)-7a-methyl-1,2,3,6,7,7a-hexahydro-inden-5-one

Trifluoro-methanesulfonic acid (1S,3aS,4S,7aR)-1-cyano-7a-methyl-6-phenylsulfanyl-4-[(R)-2-(4,6,7,8-tetrahydro-benzo[1,3]dioxin-8a-yl)-ethyl]-3a-trimethylsilanyloxy-2,3,3a,4,7,7a-hexahydro-1H-inden-5-yl ester

3-((1R,2S)-2-Cyano-1-methyl-5-oxo-cyclopentyl)-propionic acid methyl ester

(2Z,4E)-(R)-6-Acetoxy-7-[(1R,2S)-2-(tert-butyl-diphenyl-silanyloxymethyl)-1-methyl-5-oxo-cyclopentyl]-3-ethoxy-hepta-2,4-dienoic acid allyl ester

(1S,7aR)-1-(tert-Butyl-diphenyl-silanyloxymethyl)-7a-methyl-1,2,3,6,7,7a-hexahydro-inden-5-one

(7aR)-1-hydroxymethyl-7a-methyl-2,3,5,6,7,7a-hexahydro-1H-inden-5-one

(E)-(R)-6-Acetoxy-7-[(1R,2S)-2-(tert-butyl-diphenyl-silanyloxymethyl)-1-methyl-5-oxo-cyclopentyl]-3-oxo-hept-4-enoic acid allyl ester

Acetic acid (R)-2-[(1R,2S)-2-(tert-butyl-diphenyl-silanyloxymethyl)-1-methyl-5-oxo-cyclopentyl]-1-formyl-ethyl ester

(4S,4aS,8S,8aS)-4-{(R)-1-Acetoxy-2-[(1R,2S)-2-(tert-butyl-diphenyl-silanyloxymethyl)-1-methyl-5-oxo-cyclopentyl]-ethyl}-8-(tert-butyl-diphenyl-silanyloxy)-2,5-dioxo-octahydro-naphthalene-1,4a-dicarboxylic acid 1-allyl ester 4a-methyl ester

Trifluoro-methanesulfonic acid (1S,3aS,4S,7aR)-1-cyano-3a-hydroxy-7a-methyl-6-methylsulfanyl-4-[(R)-2-(4,6,7,8-tetrahydro-benzo[1,3]dioxin-8a-yl)-ethyl]-2,3,3a,4,7,7a-hexahydro-1H-inden-5-yl ester

(1S,3aR,7aR)-3a-Hydroxy-7a-methyl-4-[(R)-2-(4,6,7,8-tetrahydro-benzo[1,3]dioxin-8a-yl)-ethyl]-5-trimethylsilanyloxy-2,3,3a,6,7,7a-hexahydro-1H-indene-1-carbonitrile

(R)-2-Acetoxy-3-[(1R,2S)-2-(tert-butyl-diphenyl-silanyloxymethyl)-1-methyl-5-oxo-cyclopentyl]-propionic acid

Acetic acid (R)-2-[(1R,2S)-2-(tert-butyl-diphenyl-silanyloxymethyl)-1-methyl-5-oxo-cyclopentyl]-1-ethylsulfanylcarbonyl-ethyl ester

(1S,4aS,5S,8aS)-5-{(R)-1-Acetoxy-2-[(1R,2S)-2-(tert-butyl-diphenyl-silanyloxymethyl)-1-methyl-5-oxo-cyclopentyl]-ethyl}-1-(tert-butyl-diphenyl-silanyloxy)-4,7-dioxo-octahydro-naphthalene-4a-carboxylic acid methyl ester

(1S,2R)-2-((R)-4-Benzenesulfonyl-3-oxo-6-4,6,7,8-tetrahydro-benzo[1,3]dioxin-8a-yl-hexyl)-2-methyl-3-oxo-cyclopentanecarbonitrile

Trifluoro-methanesulfonic acid (1S,3aS,4S,7aR)-1-cyano-7a-methyl-6-methylsulfanyl-4-[(R)-2-(4,6,7,8-tetrahydro-benzo[1,3]dioxin-8a-yl)-ethyl]-3a-trimethylsilanyloxy-2,3,3a,4,7,7a-hexahydro-1H-inden-5-yl ester