500307-46-0 2(3H)-Furanone,3-[2-[(1S,3S)-3-[(2Z)-2-[(1S,2'S,4S)-1-hydroxy-4,6,6-trimethylspiro[2,5-dioxabicyclo[2.2.2]octane-3,2'-[2H]pyran]-5'-ylidene]ethyl]-2,2-dimethyl-6-methylenecyclohexyl]ethylidene]dihydro-4-hydroxy-, (3E,4R)- 500307-47-1 2(5H)-Furanone,3-[(1E)-2-[(1S,3R)-3-[2-[(1S,2'S,4S,5'R)-1-hydroxy-4,6,6-trimethylspiro[2,5-dioxabicyclo[2.2.2]octane-3,2'-[2H]pyran]-5'-yl]ethyl]-2,2-dimethyl-6-methylenecyclohexyl]ethenyl]-