Acetic acid (E)-(R)-3-((R)-1-hydroxy-2,6,6-trimethyl-4-oxo-cyclohex-2-enyl)-1-methyl-allyl ester

Acetic acid (E)-(R)-3-((1R,4S,6S)-4-hydroxy-2,2,6-trimethyl-7-oxa-bicyclo[4.1.0]hept-1-yl)-1-methyl-allyl ester

(E)-(R)-4-[(R)-4-(tert-Butyl-dimethyl-silanyloxy)-2,6,6-trimethyl-cyclohex-1-enyl]-but-3-en-2-ol

Acetic acid (E)-(R)-3-[(R)-4-(tert-butyl-dimethyl-silanyloxy)-2,6,6-trimethyl-cyclohex-1-enyl]-1-methyl-allyl ester

Acetic acid (E)-(R)-3-[(1R,4S,6S)-4-(tert-butyl-dimethyl-silanyloxy)-2,2,6-trimethyl-7-oxa-bicyclo[4.1.0]hept-1-yl]-1-methyl-allyl ester