rel-(1R,4E,7E,11R)-1,5,9,9-tetramethyl-12-oxabicyclo[9.1.0]dodeca-4,7-dien-6-one

4-formyloxy-5-hydroxy-2,2,5,9-tetramethyl-trans-bicyclo<6,3,0>undecan-10-one

(2E,6E,10E)-11-Bromo-4,4,7-trimethyl-dodeca-2,6,10-trienoic acid

4-formyl-2,2,4,8-tetramethylbicyclo<5,3,0>deca-7-en-9-one