(-)-9(Z)-(9S,10R)-9-(5-hydroxy-3-methylpent-3-en-1-ynyl)-3,3,8,8,10-pentamethyl-1,5-dioxaspiro<5,5>undecan-9-ol

4(S)-2,6,6-trimethyl-4-acetoxy-cyclohex-2-en -1-one

(+)-1(Z)-(1R,4R,6S)-4-tert-butyldimethylsiloxy-1-(5-hydroxy-3-methylpent-3-en-1-ynyl)-2,2,6-trimethylcyclohexanol

(-)-tert-butyldimethylsilyl (1R,3S,6R)-6-ethynyl-1,5,5-trimethyl-7-oxabicyclo[4.1.0]heptan-3-yl ether

(+)-(4S,5S)-methyl dihydroabscisate