10-(4-but-2-ynyl-3,5-dimethyl-6-oxo-hexahydro-cyclopenta[b]furan-5-yl)-4,8-dimethyl-deca-4,8-dienal

4-but-2-ynyl-3-methyl-5-(3,7,11-trimethyl-dodeca-2,6,10-trienyl)hexahydrocyclopenta[b]furan-6-one

5-[3,7-dimethyl-9-(2,2,5,5-tetramethyl-[1,3]dioxolan-4-yl)-nona-2,6-dienyl]-3-methyl-4-prop-1-ynyl-hexahydro-cyclopenta[b]furan-6-one

4-but-2-ynyl-3,5-dimethyl-5-(3,7,11-trimethyl-dodeca-2,6,10-trienyl)hexahydrocyclopenta[b]furan-6-one

4-but-2-ynyl-3-methyl-5-(3,7,11-trimethyl-dodeca-2,6,10-trienyl)hexahydrocyclopenta[b]furan-6-ol