(1S,4R,6R)-6-(2-hydroxybut-3-en-2-yl)-1,3,3-trimethylbicyclo[2.2.2]octan-2-one

(1S,4R,6R)-6-[2-(methoxymethyloxy)but-3-en-2-yl]-1,3,3-trimethylbicyclo[2.2.2]octan-2-one

(1S,2R,4S,8S)-4,6,6-trimethyl-5-oxo-8-(prop-1-en-2-yl)bicyclo[2.2.2]octane-2-carboxylic acid

(-)-(1S,4R,6S)-6-isopropenyl-1,3,3-trimethylbicyclo[2.2.2]octan-2-one

(-)-(1S,4R,6R)-6-acetyl-1,3,3-trimethylbicyclo[2.2.2]octan-2-one