2,2-Dimethyl-propionic acid 2,4,4-trimethyl-3-oxo-5-[1-triisopropylsilanyloxy-meth-(E)-ylidene]-cyclohex-1-enyl ester

(S)-1-Hydroxy-4,6,6-trimethyl-5-oxo-3-triisopropylsilanyloxy-cyclohex-3-enecarbaldehyde

2,2-Dimethyl-propionic acid 5-formyl-2,4,4-trimethyl-3-oxo-cyclohex-1-enyl ester

2,2-Dimethyl-propionic acid (S)-5-hydroxy-5-hydroxymethyl-2,4,4-trimethyl-3-oxo-cyclohex-1-enyl ester

2,2-Dimethyl-propionic acid (S)-5-formyl-5-hydroxy-2,4,4-trimethyl-3-oxo-cyclohex-1-enyl ester