(3aS,7aR)-6-Hydroxymethyl-2,2-dimethyl-3a,4,5,7a-tetrahydro-benzo[1,3]dioxol-5-ol

(3aR,7aS)-2,2-Dimethyl-6-oxo-3a,6,7,7a-tetrahydro-benzo[1,3]dioxole-5-carbaldehyde

Acetic acid (R)-2-[(1R,2S)-2-(tert-butyl-diphenyl-silanyloxymethyl)-1-methyl-5-oxo-cyclopentyl]-1-((3aS,5aR,6S,9aS,9bR)-5a-formyl-2,2-dimethyl-5,8-dioxo-decahydro-naphtho[1,2-d][1,3]dioxol-6-yl)-ethyl ester

Acetic acid (R)-2-[(1R,2S)-2-(tert-butyl-diphenyl-silanyloxymethyl)-1-methyl-5-oxo-cyclopentyl]-1-((3aS,5aR,6S,9aS,9bR)-5a-hydroxymethyl-2,2-dimethyl-5,8-dioxo-decahydro-naphtho[1,2-d][1,3]dioxol-6-yl)-ethyl ester

Acetic acid (R)-2-[(1R,2S)-2-(tert-butyl-diphenyl-silanyloxymethyl)-1-methyl-5-oxo-cyclopentyl]-1-((3aS,5S,5aR,6S,9aS,9bR)-5-hydroxy-5a-hydroxymethyl-2,2-dimethyl-8-oxo-decahydro-naphtho[1,2-d][1,3]dioxol-6-yl)-ethyl ester