(4S,5R)-2-bromo-3-(3,4-dimethoxybenzyloxymethyl)-4,5-dimethyl-4-vinyl-cyclohex-2-enone

(1S,2S,4R,5S,6S)-6-methoxymethoxymethyl-4,5-dimethyl-5-vinyl-7-oxabicyclo[4.1.0]heptan-2-ol

(5R)-5,6-dimethylcyclohex-2-enone