11-cyclopropyl-8β-methyltricyclo<6.3.0.02,6>dodeca-2(6)-en-3-one

5,5-dimethyl-7-oxabicyclo[4.1.0]heptan-2-ol

2,5,5-trimethylcyclopent-1-en-1-yl triflate

cis-5,8,8-trimethylbicyclo<3.3.0>oct-3-en-2-one

(3aS,6aS)-3a,6,6-Trimethyl-2-vinyl-octahydro-pentalene-1-carboxylic acid